| Year | Count |
|---|---|
| 1910 | 5 |
| 1912 | 17 |
| 1913 | 18 |
| 1914 | 39 |
| 1915 | 69 |
| 1916 | 60 |
| 1917 | 107 |
| 1918 | 63 |
| 1919 | 69 |
| 1920 | 93 |
| 1921 | 61 |
| 1922 | 55 |
| 1923 | 28 |
| 1924 | 60 |
| 1925 | 39 |
| 1926 | 26 |
| 1927 | 29 |
| 1928 | 16 |
| 1929 | 19 |
| 1930 | 16 |
| 1931 | 10 |
| 1932 | 12 |
| 1933 | 12 |
| 1934 | 6 |
| 1935 | 42 |
| 1936 | 29 |
| 1940 | 5 |
| 1943 | 10 |
| 1951 | 27 |
| 1952 | 6 |
| 1953 | 30 |
| 1954 | 21 |
| 1955 | 19 |
| 1956 | 20 |
| 1959 | 5 |