| Year | Count |
|---|---|
| 1914 | 8 |
| 1917 | 6 |
| 1922 | 8 |
| 1923 | 10 |
| 1924 | 8 |
| 1925 | 5 |
| 1926 | 6 |
| 1927 | 6 |
| 1928 | 8 |
| 1929 | 13 |
| 1930 | 10 |
| 1941 | 5 |
| 1943 | 5 |
| 1945 | 9 |
| 1947 | 18 |
| 1948 | 7 |
| 1949 | 8 |
| 1956 | 14 |
| 1957 | 10 |
| 1959 | 12 |
| 1961 | 10 |
| 1962 | 12 |
| 1963 | 20 |
| 1966 | 10 |
| 1973 | 5 |
| 1975 | 5 |
| 1977 | 8 |
| 1981 | 5 |
| 1982 | 6 |
| 1983 | 7 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 5 |
| 2006 | 6 |
| 2007 | 5 |