| Year | Count |
|---|---|
| 1910 | 5 |
| 1913 | 5 |
| 1915 | 22 |
| 1916 | 20 |
| 1917 | 19 |
| 1919 | 30 |
| 1920 | 21 |
| 1921 | 23 |
| 1922 | 57 |
| 1923 | 6 |
| 1924 | 25 |
| 1925 | 15 |
| 1927 | 5 |
| 1928 | 5 |
| 1930 | 8 |
| 1931 | 5 |
| 1932 | 5 |
| 1934 | 11 |
| 1935 | 12 |
| 1938 | 16 |
| 1940 | 5 |
| 1941 | 5 |
| 1942 | 7 |
| 1943 | 10 |
| 1945 | 10 |
| 1946 | 5 |
| 1947 | 21 |
| 1948 | 6 |
| 1950 | 10 |
| 1951 | 10 |
| 1954 | 18 |
| 1967 | 5 |
| 1980 | 5 |