| Year | Count |
|---|---|
| 1910 | 7 |
| 1911 | 11 |
| 1912 | 19 |
| 1913 | 27 |
| 1914 | 29 |
| 1915 | 28 |
| 1916 | 38 |
| 1917 | 34 |
| 1918 | 42 |
| 1919 | 29 |
| 1920 | 25 |
| 1921 | 17 |
| 1922 | 21 |
| 1923 | 23 |
| 1924 | 23 |
| 1925 | 13 |
| 1926 | 16 |
| 1927 | 14 |
| 1928 | 13 |
| 1929 | 10 |
| 1930 | 6 |
| 1931 | 7 |
| 1932 | 8 |
| 1933 | 7 |
| 1934 | 7 |
| 1936 | 7 |
| 1937 | 8 |
| 1938 | 9 |
| 1940 | 5 |
| 1941 | 11 |
| 1942 | 8 |
| 1946 | 6 |
| 1949 | 9 |
| 1952 | 5 |
| 1954 | 5 |
| 1958 | 5 |
| 1966 | 5 |