| Year | Count |
|---|---|
| 1912 | 10 |
| 1913 | 17 |
| 1914 | 7 |
| 1915 | 16 |
| 1916 | 19 |
| 1917 | 22 |
| 1918 | 12 |
| 1919 | 5 |
| 1920 | 19 |
| 1921 | 18 |
| 1922 | 18 |
| 1923 | 15 |
| 1924 | 21 |
| 1925 | 5 |
| 1926 | 14 |
| 1927 | 11 |
| 1928 | 24 |
| 1930 | 18 |
| 1931 | 14 |
| 1932 | 11 |
| 1933 | 5 |
| 1934 | 11 |
| 1935 | 10 |
| 1936 | 23 |
| 1942 | 15 |
| 1945 | 6 |
| 1946 | 7 |
| 1949 | 7 |
| 1950 | 5 |
| 1956 | 12 |
| 1959 | 6 |
| 1961 | 5 |
| 1962 | 5 |
| 1963 | 6 |
| 1964 | 26 |
| 1968 | 7 |
| 1970 | 8 |
| 1971 | 8 |
| 1973 | 6 |
| 1977 | 5 |
| 1979 | 7 |
| 1991 | 5 |