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Expenditure on final goods and services which satisfy immediate wants and do not re-enter the productive process.
In the context of a collection, the term 'population' can be used to mean either the 'target population' or 'survey population' of a collection, although once a collection is underway it usually refers to the survey population. In the context of ABSDB datasets, the population refers to the actual set of (analysis) units objects of interest which are presented in the dataset about which information can be inferred in relation to the dataset.
The smoothing of seasonally adjusted series to create trend estimates is a means of reducing the impact of the irregular component of the series. The trend estimates are derived by applying a weighted moving average to the seasonally adjusted series. These trend series are used to analyse the underlying behaviour of the series over time. While this smoothing technique enables estimates of trend to be produced for the current period, it does result in revisions to the estimates as data for subsequent periods become available. Generally subsequent revisions become smaller.
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