Year	IUCN Cat. Ia and Ib (ha) - number	IUCN Cat. II (ha) - number	IUCN Cat. IV (ha) - number	IUCN Cat. Ia and Ib (ha)	IUCN Cat. II (ha)	IUCN Cat. IV (ha)
1990	186700	195780	0	48.81	51.19	0
1995	192190	237670	0	44.71	55.29	0
2000	192190	237670	0	44.71	55.29	0
2005	200889	285179	117752	33.27	47.23	19.5
2010	209083	361157	310534	23.74	41	35.26
2015	209083	361157	322306	23.43	40.46	36.11
2018	120720	361157	421360	13.37	39.98	46.65