Statistics on international travel arriving in and departing from Australia.
In September 2023:
These statistics report on the number of international border crossings rather than the number of people. Most data in this release are rounded to the nearest 10. As a result, sums of components may not add exactly to totals.
This release presents statistics on all overseas arrivals and departures, which is not the same as overseas migration statistics.
If you are looking for ABS statistics on overseas migration, please refer to:
| Category of travel | Sep 2019 (no.) | Sep 2021 (no.) | Sep 2022 (no.) | Sep 2023 (no.) | Sep 2022 to Sep 2023 change (%) | |
|---|---|---|---|---|---|---|
| Total arrivals | 1,746,100 | 18,850 | 1,071,520 | 1,602,720 | 49.6 | |
| Permanent arrivals(b) | 7,520 | 2,290 | 8,690 | 11,850 | 36.3 | |
| Australian resident returns(c) | ||||||
| long-term | 10,630 | 3,920 | 13,270 | 11,600 | -12.6 | |
| short-term | 992,820 | 6,040 | 633,790 | 939,060 | 48.2 | |
| Overseas visitor arrivals(d) | ||||||
| long-term | 40,170 | 2,170 | 43,930 | 55,590 | 26.6 | |
| short-term | 694,960 | 4,430 | 371,850 | 584,620 | 57.2 | |
| Total departures | 1,796,540 | 30,330 | 1,040,550 | 1,589,500 | 52.8 | |
| Australian resident departures(c) | ||||||
| long-term | 16,930 | 4,410 | 14,790 | 17,930 | 21.2 | |
| short-term | 1,133,100 | 14,450 | 722,220 | 1,062,530 | 47.1 | |
| Overseas visitor departures(d) | ||||||
| long-term | 18,560 | 9,210 | 28,620 | 22,590 | -21.1 | |
| short-term | 627,950 | 2,270 | 274,920 | 486,460 | 76.9 | |
Note: Long-term are travellers who have been away or in Australia for 12 months or more. Short-term are travellers who have been away or in Australia for less than 12 months.
Compares international visitor arrivals each month by source country and change at the state and territory level. Analysis in this section is undertaken on short-term trips (less than 1 year).
For visitor arrivals to Australia:
The three leading source countries where visitors came from were:
All travellers are asked their intended address in Australia upon arrival. For September 2023, the highest number of visitor arrivals for short-term trips was observed for New South Wales (220,760), whilst Tasmania recorded the fewest (3,790).
This map presents the number of short-term visitor arrivals in Australia in September 2023, by their state of intended stay.
- New South Wales (220,760)
- Victoria (139,180)
- Queensland (135,030)
- South Australia (16,690)
- Western Australia (57,120)
- Tasmania (3,790)
- Northern Territory (4,110)
- Australian Capital Territory (7,790).
| State or territory of stay | Sep 2019 (no.) | Sep 2021 (no.) | Sep 2022 (no.) | Sep 2023 (no.) | Sep 2022 to Sep 2023 change (%) |
|---|---|---|---|---|---|
| NSW | 251,730 | 730 | 128,980 | 220,760 | 71.2 |
| Vic. | 168,980 | 720 | 90,290 | 139,180 | 54.1 |
| Qld | 160,010 | 1,270 | 86,910 | 135,030 | 55.4 |
| SA | 22,780 | 230 | 12,020 | 16,690 | 38.8 |
| WA | 69,390 | 560 | 41,290 | 57,120 | 38.3 |
| Tas. | 5,130 | 130 | 3,030 | 3,790 | 25.0 |
| NT | 8,450 | 700 | 3,860 | 4,110 | 6.5 |
| ACT | 8,460 | 90 | 5,430 | 7,790 | 43.6 |
| Australia(a) | 694,960 | 4,430 | 371,850 | 584,620 | 57.2 |
Compares international visitor arrivals each month by source country for each state and territory. The additional information is being provided during the COVID-19 pandemic. Analyses in this section are undertaken on short-term trips (less than 1 year) unless otherwise stated.
For visitor arrivals to New South Wales:
The three leading source countries for New South Wales were:
For visitors arriving in New South Wales for a long-term trip (1 year or more):
For visitor arrivals to Victoria:
The three leading source countries for Victoria were:
For visitors arriving in Victoria for a long-term trip (1 year or more):
For visitor arrivals to Queensland:
The three leading source countries for Queensland were:
For visitors arriving in Queensland for a long-term trip (1 year or more):
For visitor arrivals to South Australia:
The three leading source countries for South Australia were:
For visitors arriving in South Australia for a long-term trip (1 year or more):
For visitor arrivals to Western Australia:
The three leading source countries for Western Australia were:
a. Top 10 source countries based on month ending September 2023.
b. Excludes SARs and Taiwan.
For visitors arriving in Western Australia for a long-term trip (1 year or more):
For visitor arrivals to Tasmania:
The three leading source countries for Tasmania were:
For visitors arriving in Tasmania for a long-term trip (1 year or more):
For visitor arrivals to the Northern Territory:
The three leading source countries for the Northern Territory were:
For visitors arriving in the Northern Territory for a long-term trip (1 year or more):
For visitor arrivals to the Australian Capital Territory:
The three leading source countries for the Australian Capital Territory were:
For visitors arriving in the Australian Capital Territory for a long-term trip (1 year or more):
Compares annual international travel arrivals over time by source country, state and territory, age and sex, main reason for journey and median duration of trip. All analysis in this section is done on short-term trips (less than 1 year).
For the most recent analysis by calendar year, see the December 2022 issue of Overseas Arrivals and Departures, Australia.
For visitors arriving in Australia in 2022-23:
The COVID-19 pandemic resulted in a substantial decline in travel movements due to international border restrictions from March 2020. These restrictions were progressively lifted from 1 November 2021, and by 21 February 2022 Australian borders were reopened to most travellers.
There were 5,856,440 visitor arrivals in 2022-23. This is an increase of nearly 4.7 million on the previous year, up from 1,191,830.
Visitor arrivals have increased since international border restrictions were removed in November 2021, but remain lower than pre-COVID levels back in 2018-19. The number of arrivals in July 2022 was 42% of the same period in 2018, and by June 2023 had increased to 82% of the 2019 level. The total number of visitor arrivals in 2022-23 was 63% of the number recorded in 2018-19.
Visitor arrivals to Australia have generally been increasing over recent decades, with a continuous increase in the ten-year period ending 2019. However, due to the impact of COVID-19, a substantial decline was observed from February 2020 onwards. Since November 2021, visitor arrivals have been increasing as border restrictions were progressively lifted.
Peaks were seen during the:
Decreases were observed during the:
The top five source countries for 2022-23 were New Zealand, the UK, the USA, India and Singapore.
In 2022-23:
Ten years ago, in 2012-13, the top five source countries were New Zealand, China, the UK, the USA and Japan.
Visitor arrivals have increased significantly since the easing of travel restrictions in November 2021, but visitor numbers from different countries have recovered at varied rates.
India was the only one of the top 10 source countries in 2022-23 to exceed pre-COVID levels, reaching 103% of 2018-19 arrivals. China had the lowest rate of recovery, reaching just 17% of 2018-19 volumes.
| Country of residence | 2012-13 ('000) | 2018-19 ('000) | 2021-22 ('000) | 2022-23 ('000) |
|---|---|---|---|---|
| New Zealand | 1,182.54 | 1,407.24 | 191.64 | 1,082.42 |
| UK, CIs & IOM | 637.98 | 718.58 | 133.85 | 573.56 |
| USA | 509.8 | 811.98 | 100.1 | 557.29 |
| India | 171.9 | 372.04 | 134.47 | 383.38 |
| Singapore | 306.92 | 464.85 | 121.06 | 357.43 |
| China(b) | 689.62 | 1,432.89 | 35.56 | 241.73 |
| Japan | 339.11 | 484.3 | 15.55 | 173.15 |
| Korea, South | 201.45 | 280.71 | 19.31 | 169.72 |
| Indonesia | 141.59 | 214.84 | 26.89 | 164.9 |
| Malaysia | 252.11 | 389.35 | 20.98 | 143.96 |
| All countries | 6,293.41 | 9,343.99 | 1,191.83 | 5,856.44 |
All travellers are asked their intended address in Australia upon arrival.
This map presents the proportion of short-term visitor arrivals in Australia in 2022-23, by their intended state or territory of stay:
Ten years ago, in 2012-13, Victoria had a smaller proportion of visitor arrivals (22.1%) than Queensland (24.4%) and the Northern Territory had a larger proportion (1.4%) than the Australian Capital Territory (1.1%) and Tasmania (0.7%).
All states and territories recorded an overall increase in international visitors in the years prior to 2020. Steady annual growth was recorded across the country, except for Tasmania, the Northern Territory, and ACT which experienced fluctuations in visitor numbers. All states and territories observed a considerable drop in visitor numbers during the COVID-19 pandemic.
Since the easing of travel restrictions in November 2021, visitor arrivals have increased in all states and territories, but have increased towards pre-COVID levels at different rates. In 2022-23, visitor arrivals to ACT reached 76% of 2018-19 movements, the highest of any state or territory. Visitor arrivals to the Northern Territory were the lowest, with movements in 2022-23 reaching 57% of 2018-19 levels.
The mix of source countries at the state and territory level was different to that at the national level. In 2022-23:
Ten years earlier, in 2012-13, it was similar, the only difference was that New Zealand was the leading source country for visitors to ACT.
There were more visits to Australia by females than males in 2022-23 (2,851,540 males compared with 3,004,900 females). In 2012-13, however, there were more male short-term visitor arrivals than female (3,256,830 males and 3,036,580 females).
In 2022-23, the median age for both male and female visitors was 42 years. When broken down into five-year age groups, the largest group of visitor arrivals was those aged between 25 and 29 years. New Zealand was the largest source country for this age group, and ‘holiday’ was the most frequently stated reason for journey (37%). In 2012-13, the median age for both male and female visitors was 39.
Visitors are asked the main reason for their journey upon arrival in Australia.
In 2022-23, the most frequently stated reasons were:
In the pre-COVID period, ‘holiday’ was the most frequently reported reason for journey for visitor arrivals (47% in 2018-19), but international travel restrictions due to COVID-19 caused a change in travel behaviour. Since the easing of these restrictions, the number of visitors to Australia has increased for all reasons, but ‘visiting friends/relatives’ is now the most common (41% in 2022-23).
Female visitors were more likely than males to record their main reason for journey as 'visiting friends/relatives' or 'holiday'. Male visitors were more likely to record 'business' or 'employment' than female visitors.
Visitors are asked their intended duration in Australia upon arrival.
During 2022-23, the median duration of stay in Australia was 14 days. This is a decrease compared to 2021-22, when the median trip duration was 25 days. In 2018-19, prior to the pandemic, the median duration of short-term visitor trips was 10 days, but median travel duration increased following international travel restrictions.
The median duration varied between the states and territories and between the numerous source countries.
| NSW | Vic. | Qld | SA | WA | Tas. | NT | ACT | Aust.(b) | |
|---|---|---|---|---|---|---|---|---|---|
| China(c) | 90 | 90 | 90 | 91 | 80 | 79 | 91 | 130 | 90 |
| India | 45 | 61 | 61 | 90 | 61 | 91 | 91 | 90 | 61 |
| UK, CIs & IOM | 20 | 21 | 22 | 22 | 22 | 21 | 26 | 20 | 21 |
| Indonesia | 14 | 14 | 14 | 16 | 14 | 14 | 24 | 13 | 14 |
| USA | 11 | 13 | 13 | 14 | 15 | 14 | 23 | 13 | 12 |
| Malaysia | 11 | 13 | 11 | 14 | 10 | 14 | 20 | 20 | 12 |
| Singapore | 9 | 10 | 10 | 10 | 8 | 11 | 8 | 10 | 9 |
| Japan | 7 | 10 | 7 | 11 | 11 | 10 | 21 | 10 | 8 |
| Korea, South | 7 | 12 | 15 | 14 | 14 | 10 | 19 | 14 | 8 |
| New Zealand | 6 | 6 | 8 | 8 | 13 | 10 | 14 | 7 | 7 |
| All countries | 14 | 15 | 13 | 21 | 19 | 15 | 24 | 21 | 14 |
In 2022-23 the median duration by state or territory was:
Visitors from China recorded a median duration of stay of 90 days, which was the longest of the top 10 countries. This was down from 156 days the year before.
Visitors from New Zealand recorded for a comparatively shorter stay, with a median duration of 7 days. This was down from 10 days the year before.
The median duration of stay of short-term visitors to Australia also varied by their reported reason for journey. Those travelling for:
Compares international student arrivals each month by visa type.
Compares international resident returns each month by destination country and change at the state and territory level. Analysis in this section is undertaken on short-term trips (less than 1 year).
For residents returning from overseas:
The three leading destination countries residents returned from were:
All travellers are asked their intended address in Australia upon arrival. For September 2023, the highest number of resident returns from short-term trips was observed for New South Wales (295,260), whilst the Northern Territory recorded the fewest (5,210).
This map presents the number of short-term resident returns in Australia in September 2023, by their state of intended residence.
- New South Wales (295,260)
- Victoria (286,720)
- Queensland (172,750)
- South Australia (40,320)
- Western Australia (112,440)
- Tasmania (9,670)
- Northern Territory (5,210)
- Australian Capital Territory (16,500).
| State or territory of residence | Sep 2019 (no.) | Sep 2021 (no.) | Sep 2022 (no.) | Sep 2023 (no.) | Sep 2022 to Sep 2023 change (%) |
|---|---|---|---|---|---|
| NSW | 318,840 | 1,710 | 212,180 | 295,260 | 39.2 |
| Vic. | 292,550 | 1,350 | 192,520 | 286,720 | 48.9 |
| Qld | 176,460 | 1,360 | 110,540 | 172,750 | 56.3 |
| SA | 47,780 | 270 | 24,480 | 40,320 | 64.7 |
| WA | 120,110 | 860 | 71,010 | 112,440 | 58.3 |
| Tas. | 11,120 | 70 | 6,830 | 9,670 | 41.7 |
| NT | 8,000 | 190 | 4,240 | 5,210 | 22.9 |
| ACT | 17,760 | 230 | 11,890 | 16,500 | 38.8 |
| Australia(a) | 992,820 | 6,040 | 633,790 | 939,060 | 48.2 |
Compares annual international travel arrivals over time by source country, state and territory, age and sex, main reason for journey and median duration of trip. All analysis in this section is done on short-term trips (less than 1 year).
For the most recent analysis by calendar year, see the December 2022 issue of Overseas Arrivals and Departures, Australia.
For Australian residents returning to Australia in 2022-23:
The COVID-19 pandemic resulted in a substantial decline in travel movements due to the introduction of international border restrictions in March 2020. These restrictions were eased progressively from 1 November 2021, resulting in increased travel in 2022-23.
8,337,080 residents returned from overseas trips in 2022-23. This was an increase of over 6.7 million on the previous year, when 1,590,910 trips were taken.
The number of resident returns in 2022-23 remained lower than pre-COVID but increased across the year, and by June 2023 had reached 87% of the corresponding period in 2019. The total number of residents returning from overseas in 2022-23 was 74% of 2018-19 (pre-COVID) volumes.
The number of Australian residents travelling overseas has largely been increasing over recent decades, with the general trend interrupted by various historical events such as the:
A substantial decline was observed in late March 2020 due to the impact of COVID-19. Travel by Australian residents has been increasing over the past year after border restrictions were gradually removed from November 2021.
The top five destination countries in 2022-23 were New Zealand, Indonesia, the USA, the UK and India.
In 2022-23:
Ten years ago, in 2012-13, the top five countries were New Zealand, the USA, Indonesia, Thailand and the UK.
The number of Australian residents travelling overseas has increased significantly since the easing of travel restrictions in November 2021, but the number of residents visiting various countries has increased at different rates.
India was the highest of the top ten destination countries when compared to pre-COVID levels, with trips taken in 2022-23 exceeding the 2018-19 level by 16%. The number of Australians visiting Fiji also exceeded the 2018-19 level by 9%. The USA had the lowest rate of recovery of the top 10 countries, reaching 56% of the 2018-19 volume.
| Country of stay | 2012-13 ('000) | 2018-19 ('000) | 2021-22 ('000) | 2022-23 ('000) |
|---|---|---|---|---|
| New Zealand | 1,126.35 | 1,444.17 | 195.37 | 1,196.62 |
| Indonesia | 914.23 | 1,310.84 | 93.4 | 1,127.18 |
| USA | 921.01 | 1,078.84 | 169.71 | 609 |
| UK, CIs & IOM | 526.49 | 667.81 | 129.64 | 539.65 |
| India | 229.07 | 416.3 | 157.5 | 483.77 |
| Thailand | 628.17 | 565.27 | 66.99 | 422.62 |
| Fiji | 337.56 | 345.35 | 127.29 | 375.74 |
| Singapore | 313.43 | 405.4 | 71.77 | 314.4 |
| Japan | 187.14 | 483.63 | 10.96 | 311.08 |
| Vietnam | 218.78 | 322.47 | 29.16 | 271.58 |
| All countries | 8,401.19 | 11,231.81 | 1,590.91 | 8,337.08 |
All travellers are asked their intended address in Australia upon arrival.
This map presents the proportion of short-term resident returns in Australia in 2022-23, by their intended state or territory of residence:
Ten years ago, in 2012-13, the Northern Territory had a higher proportion of resident returns (1.1%) than Tasmania (0.9%). Victoria’s proportion has increased (up from 24.7%) and Western Australia’s has decreased (down from 15.2%).
Most states and territories recorded growth in the number of residents taking overseas trips in the years prior to 2020. Western Australia remained steady from 2014 until the impact of the pandemic, while the Northern Territory fluctuated across the decade. There was a considerable drop for all states and territories from March 2020 due to the COVID-19 pandemic.
The easing of travel restrictions from November 2021 has resulted in an increase of international travel from residents of all states, but travel has increased towards pre-COVID levels at different rates. When compared to 2018-19, overseas trips were the highest for ACT residents, with resident returns in 2022-23 reaching 78% of 2018-19 levels, and lowest for Northern Territory residents, with 2022-23 movements reaching 65% of 2018-19 levels.
The top destination country varied between states and territories:
Ten years earlier, in 2012-13, the only difference was that New Zealand was the leading destination for residents of Vic., and the USA was the top country for those living in the ACT.
There were more trips taken overseas by Australian males than females in 2022-23 (4,291,950 males compared with 4,045,130 females). Ten years earlier, in 2012-13, there were also more trips taken by males than females (4,418,510 males compared with 3,982,680 females).
In 2022-23, male residents returning to Australia had a median age of 41 years, whereas female residents had a median age of 40 years. When broken down into five-year age groups, more women than men travelled in the age range of 15 to 34 and there were more men than women in all other age groups under 95 years of age.
Australian residents returning from overseas are asked to provide the main reason for their journey.
In 2022-23, the most frequently stated reasons were:
Prior to COVID, ‘holiday’ was the most frequently reported reason for residents returning from overseas trips (57% in 2018-19). However, due to the impact of the pandemic and travel restrictions, the proportion recording ‘visiting friends and relatives’ became the most frequent reason during that period and reached a peak of 59% in February 2022. In 2022-23, ‘holiday’ has returned as the most common reason for journey (53%) and surpassed ‘visiting friends/relatives’ (32%).
Female residents returning to Australia were more likely than male residents to record their main reason for journey as 'visiting friends/relatives' or 'holiday'. Male residents were more likely to record 'business' or ‘employment’ than female residents.
The exact duration away is measured for Australian residents returning from overseas.
During 2022-23, the median short-term trip duration for Australians travelling overseas was 15 days. This is a decrease since 2021-22, when the median trip duration was 19 days.
In 2018-19, prior to the pandemic, the median duration of short-term resident trips was 14 days, but median travel duration increased following international travel restrictions.
The median duration varied between the states and territories and between the numerous destination countries.
| NSW | Vic. | Qld | SA | WA | Tas. | NT | ACT | Aust.(b) | |
|---|---|---|---|---|---|---|---|---|---|
| India | 28 | 31 | 30 | 35 | 31 | 35 | 32 | 30 | 30 |
| UK, CIs & IOM | 25 | 25 | 26 | 26 | 24 | 30 | 28 | 25 | 25 |
| Vietnam | 18 | 19 | 18 | 21 | 18 | 18 | 21 | 18 | 19 |
| USA | 16 | 17 | 18 | 18 | 20 | 21 | 23 | 17 | 17 |
| Japan | 15 | 16 | 15 | 16 | 16 | 15 | 18 | 16 | 15 |
| Thailand | 13 | 13 | 15 | 14 | 13 | 15 | 19 | 14 | 13 |
| Indonesia | 11 | 10 | 10 | 9 | 8 | 11 | 9 | 10 | 10 |
| New Zealand | 8 | 9 | 10 | 11 | 14 | 11 | 16 | 9 | 9 |
| Singapore | 8 | 9 | 9 | 9 | 8 | 11 | 7 | 8 | 8 |
| Fiji | 7 | 8 | 7 | 8 | 10 | 8 | 9 | 7 | 7 |
| All countries | 15 | 16 | 15 | 16 | 15 | 17 | 15 | 16 | 15 |
Residents visiting India stayed away the longest of the top 10 destination countries, with a median duration of 30 days.
Residents travelling to Fiji had a median duration of 7 days, which was the shortest of the top 10 destination countries.
The duration of stay of short-term trips by Australian residents going overseas varied according to reason for journey. Those travelling for:
In April 2023, the ABS identified a data quality issue with the visa group for “Other Visas” being unusually high. The issue was identified as being due to a processing issue which prevented some arrivals records from having their correct visa subclass and state of clearance counted. To fix this issue, the ABS has reprocessed the affected records.
Revised Overseas Arrivals and Departures data from September 2007 to August 2015 was released in the March 2023 issue. The time series spreadsheets for Tables 13, 15 and 16 were revised.
A second group of affected records spanning July 2007 to June 2017 was revised and released in the April 2023 issue. The time series spreadsheets for Tables 13, 15 and 16 were revised. This information can also be found in the Methodology page, in the History of changes section for the year 2007.
1. Additional provisional data is available under the Data downloads for State of clearance (Table 13), Country of citizenship (Table 14), and Visa group (Table 15). No further breakdowns of provisional data are available, other than those which appear in this release.
2. The ABS identified a data quality issue with OAD processing which affected the state of clearance and visa grouping data. As a result, Overseas Arrivals and Departures data from September 2007 to August 2015 was revised and released in the March 2023 publication. A further revision to data from July 2007 to June 2017 was released in the April 2023 publication. For further information see Methodology page, in the History of changes section for the year 2007.
3. Due to improvements made to the quality of the imputations used to estimate duration of stay, OAD data from January to March 2022 has been revised and released in the April 2022 issue. These imputations use historical data and have been impacted by changed travel behaviour during the COVID-19 travel restrictions period. For further information see Methodology page in the History of changes section for the year 2022.
4. The ABS identified a data quality issue with the source data which affected the state and territory of stay/residence data. As a result, Overseas Arrivals and Departures data from July 2021 to February 2022 was revised and released in the March 2022 issue. For further information see Methodology page in the History of changes section for the year 2022.
5. For all Short-term Visitor Arrivals (STVA) and Short-term Resident Returns (STRR) series, the trend estimates have been suspended from February 2020 and the seasonally adjusted estimates have been suspended from April 2020 due to the impact of the COVID-19 pandemic on international travel. For more information, see the Seasonally adjusted and trend estimates section in the Methodology page associated with this release.
6. The quality of the imputation used to estimate duration of stay for some resident departures was impacted by changed travel behaviour during COVID-19 travel restrictions. The proportional split between short-term resident departures and long-term resident departures was impacted from April 2020 to December 2021. Where possible, instead of departure volumes, we recommend clients use short-term resident returns and long-term resident returns for greater accuracy. For more information on how this variable is imputed, please see paragraph 28 of the Imputations and derivations section of the Methodology page.
7. Occasionally situations occur that necessitate breaks being applied to the trend series. For an overview of the breaks currently included in the trend series, see paragraph 14 of the Seasonally adjusted and trend estimates section in the Methodology.
8. For further information about the data, including updates or changes, see the Methodology page.
Two Overseas Arrivals and Departures datasets are available in Data Explorer.
Caution: Data in Data Explorer is currently released after the 11:30am release on the ABS website. Please check the reference period when using Data Explorer.
For information on Data Explorer and how it works, see the Data Explorer user guide.
This release contains overseas movement data which should not be interpreted as 'persons'. See the Scope section, paragraph 1 in the Methodology for more detail.
The statistics in this release have been rounded. See the Confidentiality section in the Methodology for more detail.
For enquiries about these and related statistics, contact the Customer Assistance Service via the ABS website Contact Us page. The ABS Privacy Policy outlines how the ABS will handle any personal information that you provide to the ABS.
This release previously used catalogue number 3401.0
This release presents statistics on all overseas arrivals and departures, which is not the same as overseas migration statistics.
If you are looking for ABS statistics on overseas migration, please refer to: