Campsite Occupancy Survey National Data by categories. Demand Average stay of the travellers by residence and category. Units: Average stay ,Total,Luxury and cat. 1,cat. 2,cat. 3, Total,4.95,5.30,4.94,3.33, Spaniards,3.86,4.13,3.77,3.26, Foreigners,7.07,7.19,7.34,3.62, Notes: Source: National Statistics Institute