Norwegian Lichen Database - Statistics
Number of species recorded for the first time each decade
1791-1800: 5
1801-1810: 131
1811-1820: 140
1821-1830: 232
1831-1840: 75
1841-1850: 13
1851-1860: 103
1861-1870: 290
1871-1880: 63
1881-1890: 19
1891-1900: 52
1901-1910: 114
1911-1920: 78
1921-1930: 41
1931-1940: 48
1941-1950: 60
1951-1960: 14
1961-1970: 19
1971-1980: 121
1981-1990: 123
1991-2000: 81
2001- : 51