| Year | Count |
|---|---|
| 1910 | 5 |
| 1914 | 5 |
| 1915 | 16 |
| 1916 | 12 |
| 1917 | 5 |
| 1918 | 30 |
| 1920 | 10 |
| 1921 | 5 |
| 1922 | 5 |
| 1923 | 20 |
| 1924 | 6 |
| 1926 | 20 |
| 1935 | 5 |
| 1938 | 6 |
| 1940 | 5 |
| 1947 | 5 |
| 1948 | 5 |
| 1949 | 5 |
| 1955 | 6 |
| 1957 | 12 |
| 1958 | 21 |
| 1959 | 14 |
| 1962 | 6 |
| 1963 | 6 |
| 1964 | 8 |
| 1965 | 7 |
| 1966 | 8 |
| 1967 | 9 |
| 1968 | 5 |
| 1970 | 10 |
| 1971 | 5 |
| 1972 | 5 |
| 1973 | 7 |
| 1974 | 8 |
| 1975 | 7 |
| 1977 | 10 |
| 1994 | 12 |
| 1996 | 5 |
| 1998 | 5 |
| 2005 | 10 |
| 2006 | 5 |