| Year | Count |
|---|---|
| 1910 | 11 |
| 1911 | 16 |
| 1912 | 5 |
| 1912 | 12 |
| 1913 | 32 |
| 1914 | 10 |
| 1914 | 55 |
| 1915 | 78 |
| 1916 | 10 |
| 1916 | 104 |
| 1917 | 5 |
| 1917 | 137 |
| 1918 | 10 |
| 1918 | 115 |
| 1919 | 9 |
| 1919 | 113 |
| 1920 | 123 |
| 1921 | 94 |
| 1922 | 93 |
| 1923 | 71 |
| 1924 | 5 |
| 1924 | 89 |
| 1925 | 106 |
| 1926 | 104 |
| 1927 | 46 |
| 1928 | 73 |
| 1929 | 51 |
| 1930 | 66 |
| 1931 | 20 |
| 1932 | 18 |
| 1933 | 23 |
| 1934 | 28 |
| 1935 | 27 |
| 1936 | 32 |
| 1937 | 15 |
| 1938 | 15 |
| 1939 | 29 |
| 1940 | 39 |
| 1941 | 6 |
| 1942 | 14 |
| 1943 | 21 |
| 1944 | 23 |
| 1945 | 19 |
| 1946 | 17 |
| 1947 | 10 |
| 1948 | 29 |
| 1950 | 34 |
| 1951 | 10 |
| 1952 | 10 |
| 1953 | 10 |
| 1954 | 14 |
| 1956 | 5 |
| 1957 | 10 |
| 1958 | 15 |
| 1960 | 10 |
| 1970 | 5 |