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1380.0.55.005 - Perspectives on Regional Australia: Population Turnover, 2006  
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 30/09/2008  First Issue
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EXPLANATORY NOTES


Introduction

1 This publication uses data from the 2006 Census of Population and Housing to analyse population turnover across Australia, between August 2001 and August 2006. Data from the 2001 Census of Population and Housing are also presented in some tables.

Scope

2 Data are analysed and presented at the Statistical Local Area (SLA) geographical level. The SLA is an Australian Standard Geographical Classification defined area which consists of one or more Collection Districts. In aggregate, SLAs cover the whole of Australia without gaps or overlaps. They consist of a single Local Government Area, or parts thereof. Where there is no incorporated body of local government, SLAs are defined to cover the unincorporated areas. For more information, see Statistical Geography Volume 1 - Australian Standard Geographic Classification (ASGC), 2006 (cat. no. 1216.0).

3 All SLAs with a population of less than 500 usually resident people have been excluded from the analysis.

4 All Unincorporated SLAs have also been excluded from the analysis.

5 Proportions in this publication have been calculated by excluding 'not stated' and 'inadequately described' values from the denominator, where they existed. Therefore, the percentages reflect the proportion of persons or dwellings with a particular characteristic for the 'known' population.

6 All dwelling data excludes 'Visitor only' and 'Other not classifiable' households. Total figures for 'Occupied private dwellings' includes family households, lone person households and group households.

7 Data presented in this publication may differ from the data in Census QuickStats on the ABS website due to randomisation of numbers. For further information refer to Introduced Random Error. Data may also differ due to points mentioned in explanatory note 5. and 6.

Concepts and definitions

8 Data presented in this publication are based on the concept of 'usual residence'. This refers to the place where people usually lived or intended to live for a period of six months or more in 2006. All visitors to a dwelling have been excluded. Usual residence data provide information on the usually resident population that were counted in the Census, and on the internal migration patterns at regional levels.

9 The 2006 Census has three questions on usual residence that ask where the person usually lives on Census Night, and where the person usually lived one year ago and five years ago. The information acquired from the answers to the usual residence questions is recorded in the usual residence indicator variables: Usual Address Indicator Census Night (UAICP), Usual Address One Year Ago Indicator (UAI1P), Usual Address Five Years Ago Indicator (UAI5P). Use of usual residence indicators, in conjunction with other variables relating to usual residence, make it possible to identify the pattern of net movement of people between three dates, i.e. Census Night, one year ago and five years ago. The following usual residence variables are available: Place of Usual Residence (PURP), Place of Usual Residence One Year Ago (PUR1P), Place of Usual Residence Five Years Ago (PUR5P), see Census Dictionary, 2006 (cat. no. 2901.0).

10 This publication includes a count of usual residents from the 2001 Census of Population and Housing. The 2001 Census count excludes overseas visitors and was based upon 2006 Census boundaries. A best fit concordance was used to present data and excludes 'no usual address' for 2001 data. People who did not state or inadequately described their usual address at the 2001 Census were excluded from this analysis.

11 The 2006 Census count was based on usual residents and excludes overseas visitors.

12 Arrivals data were calculated using the series of questions on the 2006 Census form relating to where a person usually lives (on Census Night) and lived one and five years ago. These questions were used to determine the number of people who lived at a different usual address (to their current SLA) within Australia or lived overseas five years ago. These people are defined as arrivals. This calculation excludes persons aged 0-4 years and 'not stated', where a person did not answer any component of where they lived five years ago. The calculation does include people who recorded that they lived elsewhere in Australia five years ago, but only partially stated their address, i.e. a city. This calculation also includes people who lived overseas five years ago.

13 Departures data were calculated using the series of questions on the 2006 Census form relating to where a person usually lives (on Census Night) and lived one and five years ago. These questions were used to determine the number of people usually resident in Australia who no longer lived in the same SLA in Australia that they lived in five years ago. Excluded are people who recorded their address five years ago as 'undefined state' and 'undefined city' as it is impossible to identify the SLA these people were in so cannot report if or where they have departed. This calculation also excludes persons aged 0-4 years and people who did not state their place of usual residence five years ago i.e. 'not stated'. Data was based on place of usual residence and excludes overseas visitors. It is also not possible to determine the number of people who departed from an area to relocate overseas. Residents temporarily overseas at the time of the 2006 Census are also not included in these data.

14 Population turnover is derived by dividing the Population flow by a modified 2006 Census count. To be consistent with the calculation of arrivals and departures the 2006 Census count used as the denominator when calculating population turnover is derived from people who answered the question 'where did the person usually live five years ago (at 8 August 2001)' on the 2006 Census form. This count excludes people aged 0-4 years and people who did not state where they lived five years ago. This count is different from that used in the column '2006 Census count' in many of the tables in this publication. Using data from the column '2006 Census count' as a denominator to calculate Population turnover will result in different proportions to those published here.

15 The official population measure produced by the Australian Bureau of Statistics is Estimated Resident Population, not Census counts. See 2006 Census of Population and Housing - Fact Sheets, 2006 (cat. no. 2914.0).

16 For further information on the 2006 Census of Population and Housing, see Census Data Quality Statement.


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