| Year | Count |
|---|---|
| 1912 | 10 |
| 1913 | 12 |
| 1914 | 46 |
| 1915 | 47 |
| 1916 | 15 |
| 1917 | 59 |
| 1918 | 58 |
| 1919 | 62 |
| 1920 | 86 |
| 1921 | 20 |
| 1921 | 93 |
| 1922 | 66 |
| 1923 | 95 |
| 1924 | 96 |
| 1925 | 71 |
| 1926 | 62 |
| 1927 | 58 |
| 1928 | 61 |
| 1929 | 25 |
| 1930 | 32 |
| 1931 | 29 |
| 1935 | 12 |
| 1937 | 7 |
| 1938 | 9 |
| 1939 | 10 |
| 1940 | 5 |
| 1944 | 5 |
| 1947 | 15 |
| 1957 | 25 |
| 1963 | 5 |
| 1970 | 6 |