| Year |
# Recorded |
| 2008 |
532 |
| 2007 |
508 |
| 2006 |
515 |
| 2005 |
554 |
| 2004 |
584 |
| 2003 |
604 |
| 2002 |
597 |
| 2001 |
625 |
| 2000 |
635 |
| |
| 1999 |
559 |
| 1998 |
409 |
| 1997 |
422 |
| 1996 |
409 |
| 1995 |
316 |
| 1994 |
247 |
| 1993 |
235 |
| 1992 |
233 |
| 1991 |
214 |
| 1990 |
234 |
| |
| 1989 |
208 |
| 1988 |
159 |
| 1987 |
148 |
| 1986 |
117 |
| 1985 |
124 |
| 1984 |
102 |
| 1983 |
120 |
| 1982 |
132 |
| 1981 |
139 |
| 1980 |
162 |
| |
| 1979 |
131 |
| 1978 |
108 |
| 1977 |
80 |
| 1976 |
103 |
| 1975 |
92 |
| 1974 |
77 |
| 1973 |
91 |
| 1972 |
36 |
| 1971 |
23 |
| 1970 |
10 |
| |
| 1969 |
10 |
| 1968 |
6 |
| 1967 |
2 |
| 1966 |
3 |
| 1965 |
3 |
| 1964 |
5 |
| 1963 |
3 |
| 1962 |
1 |
| 1961 |
0 |
| 1960 |
4 |
| |
| 1959 |
3 |
| 1958 |
1 |
| 1957 |
2 |
| 1956 |
0 |
| 1955 |
1 |
| 1954 |
0 |
| 1953 |
0 |
| 1952 |
3 |
| 1951 |
4 |
| 1950 |
0 |
| |
| 1949 |
0 |
| 1948 |
2 |
| 1947 |
0 |
| 1946 |
1 |
| 1945 |
0 |
| 1944 |
0 |
| 1943 |
0 |
| 1942 |
0 |
| 1941 |
0 |
| 1940 |
0 |
| |
| 1939 |
4 |
| 1938 |
0 |
| 1937 |
0 |
| 1936 |
4 |
Updated May 2009
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