• Data reference period
• Geographic localization (NUTS - 2001)

• OTHER GAINFUL ACTIVITIES (non-farm work on the holding):  Profit-making activities at a holding that are not farming but are directly related to agricultural activity and use the holding's resources.
• REFERENCE PERIOD:  The length of time for which data are collected, e.g. a specific day, month or year.
• AGRICULTURAL HOLDING:  Technical-economic unit that uses common production factors such as labour, machinery, facilities, land, among others, fulfilling the following four conditions: 1) yield agricultural products or maintain, in good agricultural and environmental conditions, the lands that are no longer used for productive purposes; 2) reach or exceed a certain size (in area or number of animals); 3) be subject to a single management; 4) be located in a well-defined and identifiable area.

(NUmber of agricultural holdings with lucrative non agricultural activities/ Total number of agricultural holdings)*100