| Year | Count |
|---|---|
| 1914 | 7 |
| 1915 | 5 |
| 1917 | 5 |
| 1919 | 5 |
| 1920 | 7 |
| 1921 | 6 |
| 1922 | 5 |
| 1923 | 11 |
| 1925 | 9 |
| 1926 | 8 |
| 1928 | 8 |
| 1929 | 6 |
| 1931 | 7 |
| 1932 | 5 |
| 1933 | 10 |
| 1934 | 6 |
| 1936 | 5 |
| 1937 | 10 |
| 1942 | 6 |
| 1943 | 8 |
| 1944 | 6 |
| 1945 | 8 |
| 1946 | 10 |
| 1947 | 7 |
| 1949 | 10 |
| 1950 | 6 |
| 1951 | 9 |
| 1952 | 6 |
| 1953 | 7 |
| 1954 | 5 |
| 1955 | 6 |
| 1958 | 5 |
| 1969 | 5 |
| 1970 | 5 |