| Year | Count |
|---|---|
| 1910 | 41 |
| 1911 | 32 |
| 1912 | 35 |
| 1913 | 14 |
| 1914 | 24 |
| 1915 | 56 |
| 1916 | 20 |
| 1917 | 51 |
| 1918 | 61 |
| 1919 | 51 |
| 1920 | 33 |
| 1921 | 37 |
| 1922 | 30 |
| 1923 | 22 |
| 1924 | 23 |
| 1925 | 42 |
| 1926 | 27 |
| 1927 | 42 |
| 1928 | 27 |
| 1929 | 5 |
| 1930 | 45 |
| 1931 | 21 |
| 1932 | 6 |
| 1934 | 11 |
| 1940 | 5 |
| 1941 | 12 |
| 1942 | 5 |
| 1944 | 5 |
| 1946 | 19 |
| 1947 | 15 |
| 1948 | 17 |
| 1949 | 10 |
| 1950 | 25 |
| 1951 | 5 |
| 1952 | 5 |
| 1953 | 5 |
| 1955 | 16 |
| 1956 | 23 |
| 1957 | 18 |
| 1958 | 25 |
| 1960 | 15 |
| 1961 | 21 |
| 1965 | 5 |
| 1970 | 6 |