Methodology of Its Charts
ARIA collects recorded music sales data from more than 1100 music retailers across Australia. Sales figures are then extrapolated to achieve a 'best estimate' of the actual overall sales of each title. Titles are ranked according to their 'weighted' sales figures.
The charts are calculated once every week on Sundays. They are based on retail music sales within Australia for the week from the preceding Saturday to the Friday prior to calculation. The new charts are usually uploaded to the official ARIA website on Sunday night Eastern Australian time. The Club Chart is compiled from weekly DJ reports across Australia.
In April 2006, ARIA began producing a Digital Track Chart, calculated from sales data submitted by major online music providers such as Apple iTunes, BigPond Music, Destra Music, NineMSN Music and Soundbuzz, as well as retailers such as Ripit, Leading Edge and JB Hi-Fi. ARIA says the digital sales market accounted for $8 million revenue to the industry during 2005, or around 1.5 per cent of the overall wholesale market.
Read more about this topic: Australian Recording Industry Association
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