| Year | Count |
|---|---|
| 1924 | 5 |
| 1935 | 15 |
| 1937 | 18 |
| 1947 | 5 |
| 1949 | 7 |
| 1950 | 12 |
| 1953 | 10 |
| 1954 | 24 |
| 1955 | 33 |
| 1956 | 12 |
| 1962 | 14 |
| 1964 | 5 |
| 1965 | 10 |
| 1966 | 5 |
| 1967 | 10 |
| 1969 | 5 |
| 1970 | 7 |
| 1971 | 6 |
| 1972 | 13 |
| 1979 | 5 |
| 1981 | 13 |
| 1982 | 5 |
| 1984 | 7 |
| 1986 | 12 |
| 1987 | 17 |
| 1988 | 12 |
| 1989 | 7 |
| 1990 | 12 |
| 1991 | 6 |
| 1992 | 20 |
| 1993 | 14 |
| 1994 | 5 |
| 1999 | 12 |
| 2006 | 6 |
| 2008 | 5 |
| 2011 | 10 |