Campsite Occupancy Survey National Data by categories. Demand Overnight stays of travellers by category of establishment and months. Units: number ,Total,January,February,March,April,May,June,July,August,September,October,November,December, Total,40,720,537,1,097,811,1,167,242,1,482,760,2,678,460,2,668,449,4,456,247,7,961,345,10,915,513,3,903,995,1,961,457,1,187,609,1,239,648, Luxury and cat. 1,18,975,219,462,386,515,417,619,144,1,219,768,1,269,315,2,143,312,3,860,218,5,137,619,1,852,242,924,159,460,399,511,241, cat. 2,18,632,135,580,006,591,894,759,743,1,299,137,1,253,686,1,952,215,3,407,512,4,757,643,1,771,216,920,673,663,837,674,573, cat. 3,3,113,183,55,420,59,931,103,873,159,555,145,448,360,720,693,615,1,020,252,280,536,116,626,63,373,53,835, Notes: Source: National Statistics Institute