| Year | Count |
|---|---|
| 1913 | 12 |
| 1914 | 12 |
| 1915 | 12 |
| 1916 | 14 |
| 1917 | 28 |
| 1918 | 14 |
| 1919 | 7 |
| 1920 | 17 |
| 1921 | 10 |
| 1922 | 16 |
| 1923 | 8 |
| 1925 | 26 |
| 1927 | 15 |
| 1928 | 23 |
| 1930 | 27 |
| 1931 | 10 |
| 1932 | 21 |
| 1933 | 18 |
| 1934 | 15 |
| 1937 | 32 |
| 1938 | 23 |
| 1939 | 10 |
| 1941 | 6 |
| 1946 | 5 |
| 1947 | 10 |
| 1948 | 7 |
| 1950 | 7 |
| 1951 | 28 |
| 1953 | 16 |
| 1955 | 10 |
| 1961 | 12 |
| 1965 | 5 |
| 1969 | 10 |
| 1971 | 10 |
| 1972 | 10 |
| 1973 | 5 |