Database Summary for species by year
| Year | Records |
|---|
| 2007 | 8912 |
| 2006 | 14095 |
| 2005 | 29847 |
| 2004 | 41118 |
| 2003 | 25103 |
| 2002 | 21302 |
| 2001 | 19649 |
| 2000 | 22546 |
| 1999 | 20323 |
| 1998 | 13286 |
| 1997 | 10518 |
| 1996 | 8739 |
| 1995 | 9356 |
| 1994 | 10183 |
| 1993 | 9268 |
| 1992 | 14689 |
| 1991 | 16774 |
| 1990 | 21275 |
| 1989 | 9024 |
| 1988 | 8885 |
| 1987 | 6385 |
| 1986 | 5766 |
| 1985 | 8385 |
| 1984 | 11881 |
| 1983 | 11030 |
| 1982 | 6203 |
| 1981 | 4422 |
| 1980 | 4190 |
| 1979 | 2583 |
| 1978 | 1757 |
| 1977 | 2044 |
| 1976 | 1440 |
| 1975 | 441 |
| 1974 | 67 |
| 1973 | 114 |
| 1972 | 129 |
| 1971 | 436 |
| 1970 | 240 |
| 1969 | 37 |
| 1968 | 276 |
| 1967 | 2 |
| 1966 | 22 |
| 1965 | 16 |
| 1964 | 24 |
| 1963 | 20 |
| 1962 | 67 |
| 1961 | 440 |
| 1960 | 91 |
| 1959 | 6 |
| 1958 | 146 |
| 1957 | 7 |
| 1956 | 295 |
| 1955 | 3 |
| 1954 | 3 |
| 1953 | 74 |
| 1952 | 1 |
| 1951 | 9 |
| 1950 | 7 |
| 1949 | 8 |
| 1948 | 9 |
| 1947 | 14 |
| 1946 | 7 |
| 1944 | 1 |
| 1943 | 1 |
| 1942 | 2 |
| 1941 | 1 |
| 1940 | 1 |
| 1938 | 3 |
| 1937 | 3 |
| 1936 | 1 |
| 1935 | 18 |
| 1934 | 2 |
| 1932 | 15 |
| 1931 | 50 |
| 1930 | 6 |
| 1929 | 53 |
| 1923 | 2 |
| 1921 | 1 |
| 1920 | 3 |
| 1918 | 2 |
| 1913 | 1 |
| 1912 | 2 |
| 1911 | 2 |
| 1910 | 1 |
| 1909 | 1 |
| 1908 | 1 |
| 1907 | 3 |
| 1906 | 2 |
| 1905 | 6 |
| 1904 | 1 |
| 1903 | 51 |
| 1902 | 17 |
| 1901 | 5 |
| 1900 | 6 |
| 1899 | 41 |
| 1898 | 1 |
| 1897 | 1 |
| 1896 | 1 |
| 1884 | 14 |
| 1883 | 1 |
| 1882 | 58 |
| 1880 | 3 |
| 1871 | 1 |
| 1870 | 1 |
| 1850 | 28 |
| 1836 | 2 |
