| Year | Count |
|---|---|
| 1922 | 10 |
| 1931 | 5 |
| 1943 | 5 |
| 1947 | 6 |
| 1949 | 7 |
| 1950 | 14 |
| 1951 | 5 |
| 1952 | 6 |
| 1954 | 11 |
| 1955 | 5 |
| 1957 | 14 |
| 1958 | 22 |
| 1959 | 22 |
| 1960 | 16 |
| 1961 | 8 |
| 1962 | 12 |
| 1963 | 9 |
| 1964 | 11 |
| 1965 | 8 |
| 1966 | 15 |
| 1967 | 11 |
| 1968 | 12 |
| 1969 | 15 |
| 1970 | 20 |
| 1971 | 19 |
| 1972 | 12 |
| 1973 | 8 |
| 1974 | 8 |
| 1975 | 7 |
| 1978 | 10 |
| 1979 | 14 |
| 1983 | 5 |
| 1988 | 5 |
| 1989 | 5 |
| 1990 | 9 |
| 1991 | 6 |
| 1992 | 5 |
| 1998 | 5 |
| 2000 | 5 |
| 2013 | 6 |
| 2016 | 15 |
| 2023 | 10 |