Langford

2011 Census All persons QuickStats
Geography type State Suburbs
Area code SSC50429
People 5,529
Male 2,831
Female 2,698
Median age 32
Families 1,428
Average children per family 1.9
All private dwellings 2,125
Average people per household 2.8
Median weekly household income $1,112
Median monthly mortgage repayments $1,517
Median weekly rent $280
Average motor vehicles per dwelling 1.7

Search all persons QuickStats for another area

Map is loading.
Other 2011 Census products available for this area:
To view more QuickStats or Community Profiles for a different area, see Search Census data.

People

demographics & education | cultural & language diversity | employment

Demographics & education

People Langford % Langford Western Australia % Western Australia Australia % Australia
Total 5,529 -- 2,239,170 -- 21,507,717 --
Male 2,831 51.2 1,126,178 50.3 10,634,013 49.4
Female 2,698 48.8 1,112,992 49.7 10,873,704 50.6
 null  null  null  null  null  null  null
Aboriginal and/or Torres Strait Islander people 156 2.8 69,664 3.1 548,369 2.5

In the 2011 Census, there were 5,529 people in Langford of these 51.2% were male and 48.8% were female. Aboriginal and/or Torres Strait Islander people made up 2.8% of the population.

Age
People
Langford % Langford Western Australia % Western Australia Australia % Australia
0-4 years 418 7.6 151,262 6.8 1,421,050 6.6
5-9 years 406 7.3 142,774 6.4 1,351,921 6.3
10-14 years 360 6.5 146,035 6.5 1,371,054 6.4
15-19 years 408 7.4 148,208 6.6 1,405,798 6.5
20-24 years 423 7.7 159,010 7.1 1,460,673 6.8
25-29 years 492 8.9 167,944 7.5 1,513,236 7.0
30-34 years 475 8.6 156,152 7.0 1,453,775 6.8
35-39 years 477 8.6 161,526 7.2 1,520,138 7.1
40-44 years 372 6.7 166,731 7.4 1,542,879 7.2
45-49 years 295 5.3 159,859 7.1 1,504,142 7.0
50-54 years 281 5.1 150,369 6.7 1,447,404 6.7
55-59 years 301 5.4 133,894 6.0 1,297,244 6.0
60-64 years 288 5.2 120,531 5.4 1,206,116 5.6
65-69 years 196 3.5 86,324 3.9 919,319 4.3
70-74 years 163 2.9 66,219 3.0 708,090 3.3
75-79 years 88 1.6 49,832 2.2 545,263 2.5
80-84 years 50 0.9 38,284 1.7 436,936 2.0
85 years and over 35 0.6 34,217 1.5 402,681 1.9
Median age 32 -- 36 -- 37 --

The median age of people in Langford was 32 years. Children aged 0 - 14 years made up 21.4% of the population and people aged 65 years and over made up 9.5% of the population.

Registered marital status
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Married 1,956 45.1 876,746 48.7 8,461,114 48.7
Separated 134 3.1 53,815 3.0 529,280 3.0
Divorced 378 8.7 150,800 8.4 1,460,899 8.4
Widowed 174 4.0 83,174 4.6 949,634 5.5
Never married 1,699 39.1 634,569 35.3 5,962,769 34.3

Of people in Langford aged 15 years and over, 45.1% were married and 11.8% were either divorced or separated.

Median age by registered marital status
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Married 45 -- 49 -- 50 --
Separated 50 -- 48 -- 49 --
Divorced 54 -- 54 -- 54 --
Widowed 68 -- 78 -- 78 --
Never married 25 -- 25 -- 25 --

The median age of married people in Langford was 45 years and the median age of people never married was 25 years.

Social marital status
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Registered marriage 1,789 44.1 768,781 49.2 7,647,042 49.2
De facto marriage 292 7.2 171,273 11.0 1,476,369 9.5
Not married 1,976 48.7 623,367 39.9 6,413,399 41.3

In Langford, of people aged 15 years and over, 44.1% of people were in a registered marriage and 7.2% were in a de facto marriage.

Median age by social marital status
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Registered marriage 45 -- 49 -- 50 --
De facto marriage 33 -- 34 -- 35 --
Not married 31 -- 31 -- 33 --

The median age of people in a registered marriage in Langford was 45 years and the median age of people in a de facto marriage was 33 years.

Education Langford % Langford Western Australia % Western Australia Australia % Australia
Pre-school 97 5.4 32,429 4.8 332,844 5.1
Primary - Government 331 18.3 129,300 19.0 1,181,787 18.2
Primary - Catholic 78 4.3 33,580 4.9 359,062 5.5
Primary - Other Non Government 79 4.4 25,745 3.8 214,359 3.3
Secondary - Government 233 12.9 64,075 9.4 774,074 11.9
Secondary - Catholic 32 1.8 29,741 4.4 307,142 4.7
Secondary - Other Non Government 35 1.9 29,867 4.4 254,828 3.9
Technical or further education institution 196 10.8 48,758 7.2 473,606 7.3
University or tertiary institution 215 11.9 91,938 13.5 932,524 14.3
Other 50 2.8 13,527 2.0 161,660 2.5
Not Stated 461 25.5 180,865 26.6 1,511,694 23.2
Total 1,807 -- 679,825 -- 6,503,580 --

In Langford 32.7% of people were attending an educational institution. Of these, 27.0% were in primary school, 16.6% in secondary school and 22.6% in a tertiary or technical institution.

Cultural & language diversity

Ancestry, top responses Langford % Langford Western Australia % Western Australia Australia % Australia
English 1,385 20.6 848,230 29.0 7,238,533 25.9
Australian 1,084 16.2 724,360 24.8 7,098,486 25.4
Chinese 844 12.6 75,935 2.6 866,208 3.1
Scottish 240 3.6 186,475 6.4 1,792,622 6.4
Irish 228 3.4 187,038 6.4 2,087,758 7.5

The most common ancestries in Langford were English 20.6%, Australian 16.2%, Chinese 12.6%, Scottish 3.6% and Irish 3.4%.

Country of birth Langford % Langford Western Australia % Western Australia Australia % Australia
Australia 2,460 44.5 1,407,806 62.9 15,017,847 69.8
Other top responses:  null  null  null  null  null  null
China (excludes SARs and Taiwan) 294 5.3 16,693 0.7 318,969 1.5
England 243 4.4 191,934 8.6 911,593 4.2
Burma (Republic of the Union of Myanmar) 227 4.1 7,454 0.3 21,760 0.1
India 221 4.0 29,915 1.3 295,362 1.4
Malaysia 214 3.9 24,968 1.1 116,196 0.5

In Langford, 44.5% of people were born in Australia. The most common countries of birth were China (excludes SARs and Taiwan) 5.3%, England 4.4%, Burma (Republic of the Union of Myanmar) 4.1%, India 4.0% and Malaysia 3.9%.

Birthplace of parents, stated responses Langford % Langford Western Australia % Western Australia Australia % Australia
Both parents born overseas 3,342 65.5 854,106 41.4 6,876,586 34.3
Father only born overseas 312 6.1 175,316 8.5 1,407,270 7.0
Mother only born overseas 212 4.2 130,099 6.3 989,220 4.9
Both parents born in Australia 1,233 24.2 903,103 43.8 10,757,087 53.7

In Langford, 24.2% of people had both parents born in Australia and 65.5% of people had both parents born overseas.

Religious affiliation, top responses Langford % Langford Western Australia % Western Australia Australia % Australia
No Religion 1,217 22.0 571,948 25.5 4,796,787 22.3
Catholic 1,171 21.2 529,118 23.6 5,439,268 25.3
Islam 619 11.2 39,116 1.7 476,290 2.2
Anglican 593 10.7 421,093 18.8 3,679,907 17.1
Buddhism 441 8.0 47,396 2.1 528,978 2.5

The most common responses for religion in Langford were No Religion 22.0%, Catholic 21.2%, Islam 11.2%, Anglican 10.7% and Buddhism 8.0%.

Language, top responses (other than English) Langford % Langford Western Australia % Western Australia Australia % Australia
Mandarin 342 6.2 28,033 1.3 336,410 1.6
Cantonese 239 4.3 18,006 0.8 263,673 1.2
Burmese 168 3.0 4,371 0.2 12,340 0.1
Indonesian 141 2.6 9,084 0.4 55,870 0.3
Arabic 98 1.8 11,957 0.5 287,174 1.3
 null  null  null  null  null  null  null
English only spoken at home 2,885 52.2 1,775,950 79.3 16,509,291 76.8
Households where two or more languages are spoken 794 41.7 137,091 17.3 1,579,949 20.4

In Langford 52.2% of people only spoke English at home. Other languages spoken at home included Mandarin 6.2%, Cantonese 4.3%, Burmese 3.0%, Indonesian 2.6% and Arabic 1.8%.

Employment

Employment
People who reported being in the labour force, aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Worked full-time 1,569 59.0 699,414 60.7 6,367,554 59.7
Worked part-time 667 25.1 324,257 28.1 3,062,976 28.7
Away from work 206 7.7 74,210 6.4 627,797 5.9
Unemployed 217 8.2 54,319 4.7 600,133 5.6
Total in labour force 2,659 -- 1,152,200 -- 10,658,460 --

There were 2,659 people who reported being in the labour force in the week before Census night in Langford. Of these 59.0% were employed full time, 25.1% were employed part-time and 8.2% were unemployed.

View the labour force fact sheet
Employment - hours worked
Labour force, people aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
1-15 hours per week 229 9.4 118,795 10.8 1,087,799 10.8
16-24 hours per week 213 8.7 100,864 9.2 947,792 9.4
25-34 hours per week 222 9.1 104,595 9.5 1,027,380 10.2
35-39 hours per week 548 22.5 173,235 15.8 1,808,879 18.0
40 hours or more per week 1,016 41.7 526,185 47.9 4,558,678 45.3

Of employed people in Langford, 9.4% worked 1 to 15 hours, 8.7% worked 16 to 24 hours and 41.7% worked 40 hours or more.

Median age by employment status
Labour force, people aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Employed full-time 37 -- 40 -- 40 --
Employed part-time 36 -- 40 -- 40 --

The median age of people employed full-time in Langford was 37 years and for people who were employed part-time was 36 years.

Occupation
Employed people aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Technicians and Trades Workers 436 17.9 183,299 16.7 1,425,146 14.2
Labourers 360 14.8 106,227 9.7 947,608 9.4
Professionals 344 14.1 218,354 19.9 2,145,442 21.3
Machinery Operators And Drivers 305 12.5 83,856 7.6 659,551 6.6
Clerical and Administrative Workers 303 12.4 158,179 14.4 1,483,558 14.7
Community and Personal Service Workers 294 12.1 103,384 9.4 971,897 9.7
Sales Workers 182 7.5 94,596 8.6 942,140 9.4
Managers 156 6.4 133,801 12.2 1,293,970 12.9

The most common occupations in Langford included Technicians and Trades Workers 17.9%, Labourers 14.8%, Professionals 14.1%, Machinery Operators And Drivers 12.5%, Clerical and Administrative Workers 12.4%, Community and Personal Service Workers 12.1%, Sales Workers 7.5% and Managers 6.4%.

Industry of employment, top responses
Employed people aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Cafes, Restaurants and Takeaway Food Services 165 6.8 44,818 4.1 412,804 4.1
School Education 81 3.3 55,778 5.1 467,373 4.6
Hospitals 76 3.1 35,342 3.2 361,011 3.6
Residential Care Services 75 3.1 19,320 1.8 184,770 1.8
Road Freight Transport 58 2.4 19,691 1.8 171,578 1.7

Of the employed people in Langford, the most common responses for industry of employment included Cafes, Restaurants and Takeaway Food Services 6.8%, School Education 3.3%, Hospitals 3.1%, Residential Care Services 3.1% and Road Freight Transport 2.4%.

Median weekly incomes
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Personal 514 -- 662 -- 577 --
Family 1,257 -- 1,722 -- 1,481 --
Household 1,112 -- 1,415 -- 1,234 --

The median weekly personal income for people aged 15 years and over in Langford was $514.

View the income fact sheet
Travel to work, top responses
Employed people aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Car, as driver 1,570 64.4 662,948 60.4 6,059,972 60.2
Car, as passenger 168 6.9 63,485 5.8 537,638 5.3
Bus 110 4.5 40,762 3.7 301,187 3.0
Train, bus 61 2.5 14,009 1.3 83,712 0.8
Train 49 2.0 24,271 2.2 388,012 3.9
 null  null  null  null  null  null  null
People who travelled to work by public transport 286 11.7 102,895 9.4 1,046,721 10.4
People who travelled to work by car as driver or passenger 1,738 71.3 729,050 66.4 6,620,840 65.8

In Langford, on the day of the Census, the most common methods of travel to work for employed people included Car, as driver 64.4%, Car, as passenger 6.9%, Bus 4.5%, Train, bus 2.5% and Train 2.0%. On the day, 11.7% of employed people used public transport (train, bus, ferry, tram/light rail) as at least one of their methods of travel to work and 71.3% used car (either as driver or as passenger).

Unpaid work
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Did unpaid domestic work (last week) 2,715 62.6 1,255,935 69.8 12,149,347 70.0
Cared for child/children (last two weeks) 1,163 26.8 507,968 28.2 4,827,808 27.8
Provided unpaid assistance to a person with a disability (last two weeks) 412 9.5 168,014 9.3 1,896,957 10.9
Did voluntary work through an organisation or group (last 12 months) 504 11.6 304,623 16.9 3,090,874 17.8

In Langford, of people aged 15 years and over, 62.6% did unpaid domestic work in the week before the Census. During the two weeks before the Census, 26.8% provided care for children and 9.5% assisted family members or others due to a disability, long term illness or problems related to old age. In the year before the Census, 11.6% of people did voluntary work through an organisation or a group.

Unpaid domestic work, number of hours
People aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Less than 5 hours per week 894 20.6 399,954 22.2 3,883,357 22.4
5 to 14 hours per week 981 22.6 459,759 25.6 4,444,640 25.6
15 to 29 hours per week 403 9.3 209,912 11.7 2,075,154 12.0
30 hours or more per week 438 10.1 186,312 10.4 1,746,196 10.1

Of people who did unpaid domestic work in the week before the Census in Langford, 22.6% worked 5 to 14 hours, 9.3% worked 15 to 29 hours and 10.1% worked 30 hours or more.

Families

family composition | weekly incomes | employment status of couple families

Family composition

Family composition Langford % Langford Western Australia % Western Australia Australia % Australia
Couple family without children 423 29.6 226,879 38.8 2,150,301 37.8
Couple family with children 649 45.4 262,885 44.9 2,534,399 44.6
One parent family 316 22.1 85,067 14.5 901,637 15.9
Other family 41 2.9 10,479 1.8 97,722 1.7

Of the families in Langford, 45.4% were couple families with children, 29.6% were couple families without children and 22.1% were one parent families.

Single (or lone) parents
Proportion of the total single (or lone) parent population
Langford % Langford Western Australia % Western Australia Australia % Australia
Male -- 19.1 -- 18.0 -- 17.6
Female -- 80.9 -- 82.0 -- 82.4

In Langford 19.1% of single parents were male and 80.9% were female.

Weekly incomes

Median family income, couple families with two incomes Langford % Langford Western Australia % Western Australia Australia % Australia
Families without children 2,058 -- 2,257 -- 2,081 --
Families with children 1,896 -- 2,497 -- 2,310 --

In Langford, for couple families with two incomes, the median income for those with children was $1,896 and those without children was $2,058.

View the income fact sheet

Employment status of couple families

Employment status of couple families
Labour force, parents or partners aged 15 years and over
Langford % Langford Western Australia % Western Australia Australia % Australia
Both employed, worked full-time 201 18.8 102,046 20.8 1,015,165 21.7
Both employed, worked part-time 33 3.1 18,398 3.8 174,795 3.7
One employed full-time, one part-time 154 14.4 107,972 22.0 1,001,907 21.4
One employed full-time, other not working 220 20.6 81,901 16.7 736,322 15.7
One employed part-time, other not working 80 7.5 24,046 4.9 251,191 5.4
Both not working 218 20.4 76,909 15.7 899,598 19.2
Other 84 7.9 32,710 6.7 291,196 6.2
Labour force status not stated 78 7.3 45,776 9.3 314,529 6.7

In Langford, of couple families with children, 18.8% had both partners employed full-time, 3.1% had both employed part-time and 14.4% had one employed full-time and the other part-time.

Dwellings

dwelling structure | household composition | mortgage & rent | number of motor vehicles

Dwelling structure

Dwelling tables exclude visitor only and other non-classifiable households

Dwelling type Langford % Langford Western Australia % Western Australia Australia % Australia
Occupied private dwellings 1,901 92.5 794,159 87.9 7,760,320 89.3
Unoccupied private dwellings 154 7.5 109,328 12.1 934,470 10.7

In Langford, 92.5% of private dwellings were occupied and 7.5% were unoccupied.

Dwelling structure
Occupied private dwellings
Langford % Langford Western Australia % Western Australia Australia % Australia
Separate house 1,606 84.4 638,768 80.4 5,864,574 75.6
Semi-detached, row or terrace house, townhouse etc 211 11.1 84,333 10.6 765,980 9.9
Flat, unit or apartment 86 4.5 62,990 7.9 1,056,237 13.6
Other dwelling 0 0.0 7,380 0.9 66,666 0.9

Of occupied private dwellings in Langford, 84.4% were separate houses, 11.1% were semi-detached, row or terrace houses, townhouses etc, 4.5% were flats, units or apartments and 0.0% were other dwellings.

Number of bedrooms
Occupied private dwellings
Langford % Langford Western Australia % Western Australia Australia % Australia
None (includes bedsitters) 6 0.3 2,868 0.4 42,160 0.5
1 bedroom 48 2.5 28,193 3.6 363,129 4.7
2 bedrooms 123 6.5 103,373 13.0 1,481,577 19.1
3 bedrooms 1,076 56.5 312,043 39.3 3,379,930 43.6
4 or more bedrooms 614 32.2 333,932 42.0 2,350,132 30.3
Number of bedrooms not stated 37 1.9 13,751 1.7 143,394 1.8
Average number of bedrooms per dwelling 3.2 -- 3.3 -- 3.1 --
Average number of people per household 2.8 -- 2.6 -- 2.6 --

In Langford, of occupied private dwellings 2.5% had 1 bedroom, 6.5% had 2 bedrooms and 56.5% had 3 bedrooms. The average number of bedrooms per occupied private dwelling was 3.2. The average household size was 2.8 people.

Tenure
Occupied private dwellings
Langford % Langford Western Australia % Western Australia Australia % Australia
Owned outright 453 23.8 234,627 29.5 2,488,149 32.1
Owned with a mortgage 805 42.3 300,334 37.8 2,709,433 34.9
Rented 576 30.3 231,824 29.2 2,297,458 29.6
Other tenure type 13 0.7 8,880 1.1 70,069 0.9
Tenure type not stated 55 2.9 18,493 2.3 195,213 2.5

Of occupied private dwellings in Langford, 23.8% were owned outright, 42.3% were owned with a mortgage and 30.3% were rented.

Household composition

Household composition Langford % Langford Western Australia % Western Australia Australia % Australia
Family households 1,383 72.8 573,706 72.2 5,550,614 71.5
Single (or lone) person households 436 22.9 188,764 23.8 1,888,698 24.3
Group households 82 4.3 31,690 4.0 321,007 4.1

In Langford, of all households, 72.8% were family households, 22.9% were single person households and 4.3% were group households.

Household income Langford % Langford Western Australia % Western Australia Australia % Australia
Less than $600 gross weekly income -- 24.7 -- 21.1 -- 23.7
More than $3,000 gross weekly income -- 6.1 -- 14.1 -- 11.2

In Langford, 24.7% of households had a weekly household income of less than $600 and 6.1% of households had a weekly income of more than $3,000.

View the income fact sheet

Mortgage & rent

Proportions are calculated using all tenure types for occupied private dwellings. This excludes visitor only and other non-classifiable households.

Rent weekly payments Langford % Langford Western Australia % Western Australia Australia % Australia
Median rent 280 -- 300 -- 285 --
Households where rent payments are less than 30% of household income -- 88.2 -- 91.1 -- 89.6
Households where rent payments are 30%, or greater, of household income -- 11.8 -- 8.9 -- 10.4

Proportions in this table are calculated by taking the number of households whose rent payments were 30% or more of an imputed income measure and expressing this number as a proportion of the total number of households in an area, including those households which are not renting their dwelling (excluding the small proportion of visitor only and other non-classifiable households). The nature of the income imputation means that the reported proportion may significantly overstate the true proportion. Further information on the method to impute income is available in the income fact sheet.

View the income fact sheet
Mortgage monthly repayments Langford % Langford Western Australia % Western Australia Australia % Australia
Median mortgage repayments 1,517 -- 1,950 -- 1,800 --
Households where mortgage payments are less than 30% of household income -- 87.7 -- 89.8 -- 90.1
Households where mortgage payments are 30%, or greater, of household income -- 12.3 -- 10.2 -- 9.9

Proportions in this table are calculated by taking the number of households who own their dwelling, and whose mortgage payments were 30% or more of an imputed income measure and expressing this number as a proportion of the total number of households in an area, including those households which were renting their dwelling (excluding the small proportion of visitor only and other non-classifiable households). The nature of the income imputation means that the reported proportion may significantly overstate the true proportion. Further information on the method to impute income is available in the income fact sheet.

View the income fact sheet

Number of motor vehicles

Number of registered motor vehicles Langford % Langford Western Australia % Western Australia Australia % Australia
None 139 7.3 48,447 6.1 665,852 8.6
1 motor vehicle 692 36.4 258,942 32.6 2,778,576 35.8
2 motor vehicles 689 36.2 305,676 38.5 2,802,468 36.1
3 or more vehicles 312 16.4 158,860 20.0 1,279,134 16.5
Number of motor vehicles not stated 70 3.7 22,234 2.8 234,292 3.0

In Langford, 36.4% of occupied private dwellings had one registered motor vehicle garaged or parked at their address, 36.2% had two registered motor vehicles and 16.4% had three or more registered motor vehicles.

Aboriginal and/or Torres Strait Islander people

selected people & dwelling characteristics

People characteristics

People characteristics Langford % Langford Western Australia % Western Australia Australia % Australia
Aboriginal and/or Torres Strait Islander 157 -- 69,664 -- 548,368 --
 null  null  null  null  null  null  null
Male 66 42.0 34,418 49.4 270,331 49.3
Female 91 58.0 35,246 50.6 278,037 50.7
 null  null  null  null  null  null  null
Median age 18 -- 22 -- 21 --

In Langford, there were 157 Aboriginal and/or Torres Strait Islander people. Of these, 66 (or 42.0%) were male and 91 (or 58.0%) were female. The median age was 18 years.

Dwelling characteristics

Dwelling tables exclude visitor only and other non-classifiable households. These tables represent occupied private dwellings where at least one Aboriginal and/or Torres Strait islander person was present.

Dwelling characteristics Langford % Langford Western Australia % Western Australia Australia % Australia
Average number of people per household 3.1 -- 3.5 -- 3.3 --
Average number of people per bedroom 1.3 -- 1.3 -- 1.2 --
Median household income 643 -- 1,043 -- 991 --

Average number of people per bedroom includes a miscalculation. For more information see the persons per bedroom correction page.

In Langford, for dwellings occupied by Aboriginal and/or Torres Strait Islander people, the average household size was 3.1, with 1.3 persons per bedroom. The median household income was $643.

Mortgage and rent Langford % Langford Western Australia % Western Australia Australia % Australia
Median weekly rent 175 -- 158 -- 195 --
Median monthly mortgage repayments 1,100 -- 1,733 -- 1,647 --

In Langford, for dwellings occupied by Aboriginal and/or Torres Strait Islander people, the median weekly rent was $175 and the median monthly mortgage repayment was $1,100.

Some values may have been adjusted to avoid release of confidential data. This may have a significant impact on the calculated percentages.