4 Differences exist between the grape production intended for winemaking reported by grape growers in the viticulture collection and the quantity of fresh grapes crushed by winemakers reported in the Wine and Spirit Production collection. Differences in the collection methodologies, as outlined below, mean some difference should always be apparent between the series. Prior to the 1999 collection, an exercise was undertaken to increase the number of known growers included in the collection. The improved coverage, of over 1,000 growers, means that the data presented for 1999 and later years in chapter 2 are not directly comparable with data for previous years. Prior to the 1994 season the scope varied.
Details are available on request.
8 Tasmanian data are derived from a collection undertaken by the Appellation of Origin Board under the authority of The Commissioner of Licensing. The scope of the collected data is the same as for other States. Wine production data are collected only from winemakers who crush more than 400 tonnes of grapes. The grapes crushed by these wineries includes grapes owned by others and crushed on a commission or contract basis, often for wine producers who do not have their own crushing facilities. Limited information on the quantity of grapes crushed and domestic wine sales are also obtained from winemakers crushing between 50 and 400 tonnes.