| Year | Count |
|---|---|
| 1912 | 13 |
| 1913 | 5 |
| 1914 | 21 |
| 1915 | 20 |
| 1916 | 33 |
| 1917 | 18 |
| 1918 | 34 |
| 1919 | 69 |
| 1920 | 62 |
| 1921 | 78 |
| 1922 | 62 |
| 1923 | 54 |
| 1924 | 81 |
| 1925 | 46 |
| 1926 | 64 |
| 1927 | 52 |
| 1928 | 39 |
| 1929 | 20 |
| 1930 | 42 |
| 1931 | 14 |
| 1932 | 44 |
| 1933 | 15 |
| 1934 | 24 |
| 1935 | 10 |
| 1936 | 24 |
| 1937 | 24 |
| 1938 | 18 |
| 1939 | 8 |
| 1940 | 41 |
| 1941 | 13 |
| 1943 | 11 |
| 1945 | 5 |
| 1946 | 12 |
| 1948 | 14 |
| 1949 | 10 |
| 1952 | 5 |
| 1960 | 10 |