| Year | Count |
|---|---|
| 1910 | 8 |
| 1911 | 40 |
| 1912 | 17 |
| 1913 | 27 |
| 1914 | 35 |
| 1915 | 64 |
| 1916 | 77 |
| 1917 | 112 |
| 1918 | 158 |
| 1919 | 87 |
| 1920 | 70 |
| 1921 | 51 |
| 1922 | 77 |
| 1923 | 97 |
| 1924 | 114 |
| 1925 | 146 |
| 1926 | 77 |
| 1927 | 43 |
| 1928 | 61 |
| 1929 | 70 |
| 1930 | 73 |
| 1931 | 45 |
| 1932 | 23 |
| 1933 | 36 |
| 1934 | 12 |
| 1935 | 66 |
| 1936 | 42 |
| 1937 | 5 |
| 1938 | 16 |
| 1939 | 6 |
| 1940 | 19 |
| 1941 | 15 |
| 1942 | 12 |
| 1943 | 5 |
| 1944 | 5 |
| 1946 | 6 |
| 1948 | 10 |
| 1949 | 7 |
| 1951 | 5 |
| 1953 | 19 |
| 1958 | 6 |
| 1959 | 7 |
| 1960 | 5 |
| 1975 | 5 |
| 1978 | 5 |