| Year | Count |
|---|---|
| 1911 | 10 |
| 1912 | 36 |
| 1913 | 16 |
| 1915 | 49 |
| 1915 | 17 |
| 1916 | 55 |
| 1916 | 10 |
| 1917 | 50 |
| 1918 | 51 |
| 1919 | 67 |
| 1919 | 5 |
| 1920 | 41 |
| 1921 | 66 |
| 1921 | 15 |
| 1922 | 65 |
| 1923 | 40 |
| 1924 | 70 |
| 1925 | 61 |
| 1925 | 6 |
| 1926 | 49 |
| 1927 | 55 |
| 1927 | 6 |
| 1928 | 76 |
| 1929 | 57 |
| 1930 | 75 |
| 1930 | 5 |
| 1931 | 70 |
| 1932 | 103 |
| 1933 | 99 |
| 1933 | 5 |
| 1934 | 42 |
| 1935 | 83 |
| 1936 | 36 |
| 1937 | 22 |
| 1938 | 71 |
| 1938 | 5 |
| 1939 | 68 |
| 1940 | 50 |
| 1941 | 27 |
| 1942 | 25 |
| 1943 | 74 |
| 1943 | 6 |
| 1944 | 21 |
| 1945 | 16 |
| 1946 | 15 |
| 1947 | 29 |
| 1948 | 14 |
| 1949 | 18 |
| 1950 | 33 |
| 1951 | 26 |
| 1952 | 15 |
| 1953 | 46 |
| 1954 | 11 |
| 1955 | 12 |
| 1956 | 13 |
| 1957 | 13 |
| 1958 | 12 |
| 1959 | 17 |
| 1960 | 7 |
| 1961 | 18 |