23/02/2018
An issue has been identified with how the components of net undercount were created. The contact sector should include PES respondents who were missed by Census because their dwelling was mistakenly deemed unoccupied on Census night. It was identified, however, that these respondents were erroneously treated as part of the non-contact sector. This error affected approximately 450 (unweighted) records.
The 2011 PES publication has not been updated; however, analysis of revised 2011 PES data indicated that only Table 13 Components of Net Undercount, Contact and non-contact sector—2011 was impacted. Specifically:
- Net undercount in the contact sector increased by 106,460 persons (from 634,579 persons to 741,039 persons), driven by an increase in gross undercount (94,537 more persons) and a smaller decrease in gross overcount (11,923 fewer persons)
- Net overcount in the non-contact sector increased by 106,460 persons (from -260,039 persons to -366,499 persons)
- The 2011 PES population estimates and total net undercount rates are not affected.
Therefore, the sector estimates in this publication are not comparable with other years.
The coding error has been corrected in the 2016 PES.
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