| Year | Count |
|---|---|
| 1911 | 5 |
| 1913 | 13 |
| 1914 | 7 |
| 1915 | 7 |
| 1916 | 13 |
| 1917 | 38 |
| 1918 | 22 |
| 1919 | 35 |
| 1920 | 30 |
| 1921 | 29 |
| 1922 | 30 |
| 1923 | 25 |
| 1924 | 30 |
| 1925 | 13 |
| 1926 | 18 |
| 1927 | 22 |
| 1928 | 5 |
| 1929 | 28 |
| 1930 | 9 |
| 1931 | 11 |
| 1932 | 12 |
| 1933 | 12 |
| 1934 | 15 |
| 1935 | 6 |
| 1937 | 12 |
| 1939 | 9 |
| 1941 | 5 |
| 1942 | 6 |
| 1943 | 5 |
| 1947 | 10 |
| 1948 | 5 |
| 1950 | 6 |
| 1951 | 5 |
| 1954 | 11 |
| 1955 | 5 |
| 1957 | 5 |
| 1958 | 5 |
| 1960 | 9 |
| 1964 | 8 |
| 1969 | 6 |
| 1973 | 5 |
| 1977 | 5 |