Campsite Occupancy Survey National Data by categories. Demand Travellers checked in by category of establishment and months. Units: number ;Total;January;February;March;April;May;June;July;August;September;October;November;December; Total;7,399,821;131,205;148,540;440,747;412,940;544,134;842,461;1,570,298;1,928,588;733,232;350,383;146,465;150,829; Luxury and cat. 1;3,256,818;58,524;60,215;176,530;176,185;241,825;387,039;717,647;861,591;325,098;139,671;52,635;59,857; cat. 2;3,464,842;59,451;71,867;223,792;197,848;259,113;386,010;716,806;882,770;344,720;172,939;75,318;74,208; cat. 3;678,161;13,229;16,458;40,426;38,907;43,195;69,412;135,845;184,228;63,414;37,772;18,512;16,764; Notes: Source: National Statistics Institute