| Year | Count |
|---|---|
| 1910 | 17 |
| 1911 | 17 |
| 1912 | 30 |
| 1913 | 24 |
| 1914 | 40 |
| 1915 | 37 |
| 1916 | 34 |
| 1917 | 33 |
| 1918 | 32 |
| 1919 | 25 |
| 1920 | 20 |
| 1921 | 26 |
| 1922 | 56 |
| 1923 | 34 |
| 1924 | 42 |
| 1925 | 56 |
| 1926 | 42 |
| 1927 | 48 |
| 1928 | 32 |
| 1929 | 18 |
| 1930 | 16 |
| 1931 | 14 |
| 1932 | 9 |
| 1933 | 11 |
| 1934 | 8 |
| 1935 | 5 |
| 1936 | 13 |
| 1937 | 8 |
| 1938 | 11 |
| 1939 | 6 |
| 1940 | 7 |
| 1941 | 8 |
| 1942 | 6 |
| 1943 | 5 |
| 1944 | 7 |
| 1945 | 10 |
| 1946 | 6 |
| 1948 | 5 |
| 1949 | 10 |
| 1951 | 5 |
| 1953 | 7 |
| 1955 | 6 |
| 1956 | 5 |
| 1957 | 10 |
| 1959 | 16 |
| 1960 | 12 |
| 1961 | 7 |
| 1963 | 12 |
| 1967 | 5 |