| Year | Count |
|---|---|
| 1912 | 5 |
| 1913 | 11 |
| 1915 | 10 |
| 1916 | 15 |
| 1917 | 5 |
| 1918 | 10 |
| 1919 | 14 |
| 1920 | 18 |
| 1922 | 5 |
| 1923 | 13 |
| 1924 | 23 |
| 1925 | 17 |
| 1926 | 11 |
| 1928 | 29 |
| 1929 | 13 |
| 1930 | 12 |
| 1931 | 5 |
| 1932 | 6 |
| 1934 | 27 |
| 1935 | 13 |
| 1936 | 7 |
| 1937 | 7 |
| 1940 | 11 |
| 1941 | 5 |
| 1942 | 10 |
| 1943 | 13 |
| 1944 | 8 |
| 1945 | 6 |
| 1946 | 8 |
| 1947 | 5 |
| 1948 | 15 |
| 1951 | 5 |
| 1952 | 5 |
| 1953 | 5 |