| Year | Count |
|---|---|
| 1932 | 5 |
| 1935 | 22 |
| 1936 | 12 |
| 1937 | 25 |
| 1938 | 5 |
| 1939 | 46 |
| 1940 | 31 |
| 1941 | 5 |
| 1942 | 36 |
| 1943 | 21 |
| 1944 | 18 |
| 1945 | 27 |
| 1946 | 69 |
| 1947 | 36 |
| 1948 | 73 |
| 1949 | 36 |
| 1950 | 102 |
| 1951 | 113 |
| 1952 | 74 |
| 1953 | 102 |
| 1954 | 76 |
| 1955 | 35 |
| 1956 | 15 |
| 1957 | 27 |
| 1958 | 22 |
| 1959 | 5 |
| 1960 | 12 |
| 1962 | 27 |
| 1963 | 22 |
| 1964 | 5 |
| 1966 | 12 |
| 1967 | 6 |
| 1968 | 22 |
| 1969 | 5 |
| 1970 | 16 |
| 1971 | 11 |
| 1972 | 5 |
| 1980 | 5 |
| 1992 | 5 |
| 2003 | 12 |
| 2004 | 18 |
| 2006 | 5 |
| 2007 | 6 |
| 2022 | 5 |