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;4.90;5.13;4.86;4.05; Spaniards;3.86;4.01;3.76;3.68; Foreigners;6.98;7.07;7.16;5.17; Notes: Source: National Statistics Institute