| Year | Count |
|---|---|
| 1910 | 15 |
| 1911 | 15 |
| 1912 | 18 |
| 1913 | 36 |
| 1914 | 53 |
| 1915 | 66 |
| 1916 | 78 |
| 1917 | 95 |
| 1918 | 105 |
| 1919 | 68 |
| 1920 | 63 |
| 1921 | 29 |
| 1922 | 36 |
| 1923 | 60 |
| 1924 | 23 |
| 1925 | 66 |
| 1926 | 32 |
| 1927 | 35 |
| 1928 | 42 |
| 1929 | 52 |
| 1930 | 15 |
| 1931 | 7 |
| 1932 | 9 |
| 1933 | 25 |
| 1934 | 13 |
| 1936 | 6 |
| 1937 | 12 |
| 1939 | 5 |
| 1940 | 5 |
| 1941 | 21 |
| 1942 | 17 |
| 1943 | 6 |
| 1945 | 12 |
| 1946 | 18 |
| 1947 | 10 |
| 1948 | 5 |
| 1949 | 5 |
| 1951 | 16 |
| 1952 | 10 |
| 1953 | 7 |
| 1955 | 6 |
| 1956 | 6 |
| 1959 | 10 |
| 1961 | 15 |
| 1963 | 6 |
| 1964 | 7 |
| 1970 | 5 |
| 1971 | 6 |