| Year | Count |
|---|---|
| 1942 | 5 |
| 1943 | 15 |
| 1945 | 15 |
| 1946 | 5 |
| 1947 | 15 |
| 1947 | 6 |
| 1948 | 43 |
| 1949 | 28 |
| 1950 | 15 |
| 1950 | 47 |
| 1951 | 13 |
| 1953 | 14 |
| 1954 | 16 |
| 1958 | 20 |
| 1964 | 17 |
| 1966 | 12 |
| 1967 | 34 |
| 1968 | 15 |
| 1969 | 15 |
| 1970 | 14 |
| 1971 | 58 |
| 1972 | 19 |
| 1973 | 43 |
| 1974 | 37 |
| 1975 | 70 |
| 1976 | 57 |
| 1977 | 92 |
| 1978 | 74 |
| 1979 | 89 |
| 1980 | 35 |
| 1981 | 36 |
| 1983 | 35 |
| 1984 | 10 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 34 |
| 1988 | 66 |
| 1989 | 48 |
| 1990 | 60 |
| 1991 | 69 |
| 1992 | 27 |
| 1993 | 10 |
| 1994 | 16 |
| 1995 | 5 |
| 1996 | 10 |
| 2001 | 10 |
| 2006 | 5 |
| 2013 | 10 |
| 2020 | 5 |