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7 Coverage rules were applied to ensure that each person was associated with only one dwelling and hence had only one chance of selection in the survey.
AUSTRALIAN STANDARD GEOGRAPHY CLASSIFICATION (ASGC)
8 Statistics in this release have been compiled based on the Australian Standard Geography Classification (ASGC), July 2010, (cat. no. 1216.0).
COMPARABILITY OF ESTIMATES OVER TIME
9 Community Preparedness for Emergencies was also the State Supplementary Survey topic in 2007. Factors that affect the comparability of 2011 estimates with those of 2007 are described below.
Changes to data items
10 The 2011 survey incorporates the following changes:
Implementation of the 2010 edition of the Australian Standard Geography Classification (ASGC)
11 The ASGC is amended and released annually; differences which exist between editions represent a break in series. Users should familiarise themselves with those differences by referring to the Australian Standard Geography Classification (ASGC), July 2010, (cat no. 1216.0).
12 Users may wish to refer to the following ABS publications:
Community preparedness for Emergencies, WA, Oct. 2007, (cat. no. 4818.5)
Community preparedness for Emergencies, NSW, Oct. 2003, (cat. no. 4818.1)
Household preparedness for Emergencies: NSW, Vic., Qld and ACT, Oct. 2007,
(cat no. 4818.0.55.001)
Information Paper: Emergency management information development plan, 2006, (cat. no. 1385.0)
Emergency management information development plan Matrix, 2006, (cat. no. 1385.0.55.001)
Labour Force Survey, (LFS, cat. no. 6202.0)
13 Users may also wish to refer to the following, related publications:
The Directory of National Data Items and Questions for Evaluation of Household Preparedness for Fire and Natural Disaster Emergencies, 2010, ABS for the New South Wales Fire Brigade (NSWFB)
14 Other information relating to Western Australia can be found on the ABS website
<www.abs.gov.au>. See the Western Australia theme page under Topics@ a Glance/Regional.
15 Previous State Supplementary Survey topics can be found on the Supplementary Surveys page, under the Services for State and Territory Government section of the Western Australia theme page under Topics@ a Glance/Regional.
EFFECTS OF ROUNDING
16 Estimates in this publication have been rounded and discrepancies may occur between sums of the component items and totals.
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