| Year | Count |
|---|---|
| 1910 | 29 |
| 1911 | 61 |
| 1912 | 56 |
| 1913 | 73 |
| 1914 | 67 |
| 1915 | 111 |
| 1916 | 121 |
| 1917 | 121 |
| 1918 | 128 |
| 1919 | 94 |
| 1920 | 84 |
| 1921 | 84 |
| 1922 | 144 |
| 1923 | 152 |
| 1924 | 104 |
| 1925 | 82 |
| 1926 | 88 |
| 1927 | 80 |
| 1928 | 60 |
| 1929 | 44 |
| 1930 | 32 |
| 1931 | 10 |
| 1932 | 11 |
| 1933 | 11 |
| 1934 | 5 |
| 1935 | 7 |
| 1937 | 6 |
| 1938 | 5 |
| 1953 | 5 |
| 1960 | 10 |
| 1967 | 5 |
| 1968 | 6 |
| 1971 | 5 |
| 1972 | 5 |
| 1976 | 8 |