| Year | Count |
|---|---|
| 1912 | 32 |
| 1913 | 37 |
| 1914 | 33 |
| 1915 | 36 |
| 1916 | 35 |
| 1917 | 57 |
| 1918 | 66 |
| 1919 | 65 |
| 1920 | 95 |
| 1921 | 67 |
| 1922 | 103 |
| 1923 | 82 |
| 1924 | 75 |
| 1925 | 60 |
| 1926 | 98 |
| 1927 | 83 |
| 1928 | 62 |
| 1929 | 50 |
| 1930 | 50 |
| 1931 | 58 |
| 1932 | 32 |
| 1933 | 27 |
| 1934 | 22 |
| 1935 | 31 |
| 1936 | 22 |
| 1937 | 22 |
| 1938 | 13 |
| 1940 | 10 |
| 1941 | 42 |
| 1942 | 18 |
| 1943 | 8 |
| 1944 | 17 |
| 1946 | 12 |
| 1948 | 6 |
| 1949 | 6 |
| 1952 | 16 |
| 1956 | 5 |