| Year | Count |
|---|---|
| 1912 | 24 |
| 1913 | 13 |
| 1914 | 19 |
| 1915 | 31 |
| 1916 | 32 |
| 1917 | 47 |
| 1918 | 29 |
| 1919 | 17 |
| 1920 | 27 |
| 1921 | 17 |
| 1922 | 24 |
| 1923 | 17 |
| 1924 | 16 |
| 1925 | 15 |
| 1926 | 13 |
| 1927 | 16 |
| 1928 | 29 |
| 1929 | 24 |
| 1930 | 25 |
| 1931 | 11 |
| 1933 | 12 |
| 1934 | 42 |
| 1935 | 11 |
| 1936 | 13 |
| 1937 | 6 |
| 1939 | 5 |
| 1940 | 37 |
| 1941 | 5 |
| 1942 | 5 |
| 1943 | 12 |
| 1945 | 5 |
| 1947 | 18 |
| 1951 | 5 |
| 1954 | 10 |
| 1956 | 7 |
| 1958 | 11 |
| 1959 | 6 |
| 1961 | 7 |
| 1962 | 12 |
| 1963 | 8 |
| 1964 | 11 |
| 1965 | 17 |