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TECHNICAL NOTE 1 ESTIMATION METHODOLOGY
4 For the purpose of compiling the estimates in this publication, data for businesses as recorded on the ABS Business Register (ABSBR) contribute via one of two categories (or 'streams') in accordance with significance and collection related characteristics.
Completely enumerated (CE) stream:
5 The completely enumerated stream consists of directly collected survey data for those units recorded on the ABSBR as having employment greater than 300, plus additional economically significant units in the Profiled Population and units significant to small state estimates.
Generalised regression estimation stream:
6 The generalised regression estimation stream comprises directly collected data for those sampled units which are not in the CE stream and have turnover, in aggregate, above the bottom 2.5 percentile of BAS sales for that industry, or are identified as employing businesses (based on ATO information).
Business Activity Statement (BAS) stream:
7 The reader should exercise caution interpreting the estimates relating to the number of Construction businesses, as this survey excludes businesses that contributed in aggregate less than 2.5% of Business Activity Statement (BAS) turnover and had zero employment.
8 This stream, comprising of 103,506 businesses is not in the scope of the Private Sector Construction Industry survey. Of the 103,506 businesses not eligible for selection, Construction services accounted for 69,236 businesses, Building construction 29,760 and Heavy and civil engineering 4,510.
9 Estimates for each of the selected industries were produced by aggregating the contributing data streams.
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