2901.0 - Census Dictionary, 2001  
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 24/04/2001   
   Page tools: Print Print Page  
Contents >> Short Definitions and Classifications >> Individual Income (weekly) - INCP Characteristics

Individual Income (weekly)

Image of Question
Quality Statement


This variable records the income level of people aged 15 years and over. People are asked to state their usual gross weekly income, which is the income before tax, superannuation, health insurance, or other deductions are made.

Gross income includes family payments, additional family payments, pensions, unemployment benefits, student allowances, maintenance (child support), superannuation, wages, salary, overtime, dividends, rents received, interest received, business or farm income (less operating expenses) and workers' compensation received.

People are not asked to state their exact income, only to indicate the range into which their income falls. More Detailed Description

Image of Question

Applicable to: Persons aged 15 years and over

01    Negative income
02    Nil income
03    $1–$39         ($1–$2,079)
04    $40–$79         ($2,080–$4,159)
05    $80–$119         ($4,160–$6,239)
06    $120–$159        ($6,240–$8,319)
07    $160–$199        ($8,320–$10,399)
08    $200–$299        ($10,400–$15,599)
09    $300–$399        ($15,600–$20,799)
10    $400–$499        ($20,800–$25,999)
11    $500–$599        ($26,000–$31,199)
12    $600–$699        ($31,200–$36,399)
13    $700–$799        ($36,400–$41,599)
14    $800–$999        ($41,600–77,999)
15    $1,000–$1,499   ($52,000–$77,999)
16    $1,500 or more   ($78,000 or more)
&&    Not stated
@@    Not applicable
VV    Overseas visitor

Total number of categories: 19

Not applicable (@@) category comprises:

Persons aged under 15 years

More Detailed Description

Quality Statement

Each stage of the Census is subject to stringent quality assurance measures. However, in a Census there are recognised sources of error which may survive in the data produced. Some of these are overcome or 'repaired' by careful processing procedures and quality management of the processing itself. The effect of those that remain is generally slight, although it may be more important for small groups in the population. The main kinds of error to keep in mind are:

Partial non-response - in some cases where an answer was not provided to a question an answer was imputed or derived (often from other information on the form). In other cases a 'not stated' code was allocated.

Processing error - while such errors can occur in any processing system, quality management is used to continuously improve the quality of processed data, and to identify and correct data of unacceptable quality.

Random adjustment - cells containing small values are randomly adjusted to avoid releasing information about particular individuals, families or households. The effect of random adjustment is statistically insignificant.

Respondent error - processing procedures cannot detect or repair all errors made by persons in completing the form, therefore some may remain in final data.

Undercount - although the Census aims to count each person once, there are some people who are missed and others who are counted more than once. A post enumeration survey is conducted soon after the Census to measure the undercount.

Want more information on Data Quality?

A series of Census Working Papers have been produced to assess and report on various aspects of 2001 Census data quality. More Information

Previous PageNext Page