The structure of agricultural holdings (collected through farm structure surveys - FSS) is presented at different geographical levels and over periods. The information follows up the changes in the agricultural sector and provides a basis for decision-making in the Common Agricultural Policy (CAP) and other European Union policies. The survey unit is the agricultural holding (farm). The data on individual agricultural holdings are collected by all Member States, Iceland, Norway and Switzerland and sent to Eurostat. The Former Yugoslav Republic of Macedonia, Montenegro and Serbia have also provided data for some years. The aggregated results are disseminated through statistical tables. The FSS surveys are organised in all countries in a harmonised way. For a given survey year, countries have to conduct their surveys within the agreed time-frame. Whereas the characteristics are based on Community legislation, the same data are available for all countries in case of each survey. Thus all the data are as comparable as possible.