| Year | Count |
|---|---|
| 1912 | 12 |
| 1913 | 5 |
| 1915 | 29 |
| 1916 | 7 |
| 1917 | 31 |
| 1918 | 46 |
| 1919 | 18 |
| 1921 | 35 |
| 1922 | 44 |
| 1923 | 36 |
| 1924 | 6 |
| 1925 | 31 |
| 1926 | 45 |
| 1927 | 5 |
| 1928 | 7 |
| 1929 | 26 |
| 1930 | 10 |
| 1931 | 8 |
| 1933 | 35 |
| 1934 | 25 |
| 1935 | 15 |
| 1936 | 15 |
| 1937 | 15 |
| 1939 | 15 |
| 1940 | 23 |
| 1943 | 30 |
| 1944 | 7 |
| 1945 | 7 |
| 1947 | 6 |
| 1948 | 15 |
| 1950 | 14 |
| 1953 | 10 |
| 1955 | 6 |
| 1957 | 5 |
| 1966 | 12 |