Campsite Occupancy Survey National Data by categories. Supply Estimated number of open establishments by category and months. Units: number ,January,February,March,April,May,June,July,August,September,October,November,December, Total,413,448,603,840,886,1,054,1,183,1,186,1,008,644,501,448, Luxury and cat. 1,115,123,159,231,248,285,296,297,266,169,129,117, cat. 2,241,261,350,482,505,584,654,654,561,371,293,262, cat. 3,57,63,93,127,133,184,233,235,181,105,79,69, Notes: Source: National Statistics Institute