| Year | Count |
|---|---|
| 1910 | 24 |
| 1911 | 37 |
| 1912 | 39 |
| 1913 | 46 |
| 1914 | 53 |
| 1915 | 73 |
| 1916 | 83 |
| 1917 | 65 |
| 1918 | 96 |
| 1919 | 79 |
| 1920 | 74 |
| 1921 | 76 |
| 1922 | 114 |
| 1923 | 162 |
| 1924 | 136 |
| 1925 | 114 |
| 1926 | 98 |
| 1927 | 104 |
| 1928 | 80 |
| 1929 | 76 |
| 1930 | 78 |
| 1931 | 28 |
| 1932 | 27 |
| 1933 | 16 |
| 1934 | 21 |
| 1935 | 18 |
| 1936 | 15 |
| 1937 | 9 |
| 1938 | 11 |
| 1939 | 7 |
| 1940 | 9 |
| 1942 | 9 |
| 1943 | 6 |
| 1944 | 9 |
| 1945 | 7 |
| 1946 | 8 |
| 1947 | 6 |
| 1949 | 6 |
| 1953 | 6 |
| 1958 | 10 |