| Year | Count |
|---|---|
| 1912 | 5 |
| 1914 | 5 |
| 1915 | 17 |
| 1916 | 35 |
| 1917 | 31 |
| 1918 | 28 |
| 1919 | 17 |
| 1920 | 17 |
| 1921 | 19 |
| 1922 | 37 |
| 1923 | 33 |
| 1925 | 11 |
| 1926 | 33 |
| 1927 | 15 |
| 1928 | 30 |
| 1929 | 16 |
| 1930 | 21 |
| 1932 | 18 |
| 1933 | 5 |
| 1934 | 17 |
| 1935 | 6 |
| 1936 | 31 |
| 1937 | 15 |
| 1938 | 15 |
| 1940 | 20 |
| 1941 | 18 |
| 1942 | 8 |
| 1943 | 25 |
| 1944 | 10 |
| 1951 | 7 |
| 1955 | 5 |
| 1963 | 5 |