| Year | Count |
|---|---|
| 1912 | 10 |
| 1914 | 10 |
| 1916 | 21 |
| 1917 | 22 |
| 1918 | 6 |
| 1919 | 5 |
| 1920 | 9 |
| 1923 | 7 |
| 1924 | 10 |
| 1925 | 12 |
| 1926 | 15 |
| 1927 | 20 |
| 1928 | 20 |
| 1929 | 20 |
| 1930 | 26 |
| 1931 | 26 |
| 1932 | 30 |
| 1933 | 34 |
| 1934 | 30 |
| 1935 | 42 |
| 1936 | 28 |
| 1937 | 20 |
| 1938 | 18 |
| 1939 | 14 |
| 1940 | 16 |
| 1941 | 18 |
| 1943 | 18 |
| 1950 | 7 |
| 1951 | 8 |
| 1953 | 9 |
| 1954 | 11 |
| 1955 | 8 |
| 1956 | 7 |
| 1957 | 5 |
| 1958 | 12 |
| 1959 | 9 |
| 1960 | 11 |
| 1961 | 7 |
| 1970 | 7 |
| 1972 | 5 |
| 1974 | 5 |
| 1976 | 5 |
| 1979 | 5 |
| 1981 | 7 |
| 1986 | 10 |