| Year | Count |
|---|---|
| 1910 | 10 |
| 1913 | 10 |
| 1914 | 26 |
| 1915 | 24 |
| 1916 | 14 |
| 1917 | 26 |
| 1918 | 20 |
| 1919 | 19 |
| 1920 | 31 |
| 1921 | 26 |
| 1922 | 27 |
| 1923 | 19 |
| 1924 | 20 |
| 1925 | 20 |
| 1926 | 18 |
| 1927 | 34 |
| 1928 | 32 |
| 1929 | 40 |
| 1930 | 28 |
| 1931 | 36 |
| 1932 | 40 |
| 1933 | 28 |
| 1934 | 16 |
| 1935 | 42 |
| 1936 | 8 |
| 1937 | 9 |
| 1939 | 5 |
| 1940 | 9 |
| 1941 | 10 |
| 1950 | 5 |
| 1951 | 12 |
| 1953 | 10 |
| 1955 | 5 |
| 1957 | 5 |
| 1970 | 5 |
| 1976 | 7 |
| 1979 | 5 |
| 1983 | 6 |
| 1985 | 10 |
| 1995 | 6 |