Supply balance sheets are calculated annually and provide a comprehensive overview of the food supply in Austria. Domestic use is calculated by comparing domestic production and import with export and change in stocks. The main data sources are production statistics, foreign trade statistics and expert estimates. The resulting data include the degree of self-supply and the per capita consumption.
The supply balance sheets for crops contain twelve main groups, which include a large number of detailed balance sheets. It covers the marketing year – from 1 July until 30 June of the following year. For the wine balance sheet, the reference period begins on 1 August and ends on 31 July. The reference period for the sugar balance sheet runs from 1 October until 30 September.
The animal sector contains six main groups, again with a large number of detailed balance sheets. The reference period for this sector is the calendar year from 1 January until 31 December.