Number of entreprises in the tourism industries (accommodation and food services, air transport and tour operators and travel agents) as % of all entreprises. Data for Greece is for 2010 and no data is available for Malta. Air transport figures are not available for Belgium and Slovakia. Comparison of value added by activity in relation with the EU average: Data for Greece is for 2010 and no data available for Malta. Air transport figures not available for Belgium, Estonia, Latvia, Luxembourg, Slovakia, Finland and Sweden. Gross Value Added (GVA) is defined as output minus intermediate consumption and is less than GDP because it excludes taxes on products. The value added generated by travel agents and food operators, and by accommodation and food service activities, has been divided by the number of employees in these activities during the year of reference.