| Year | Count |
|---|---|
| 1910 | 10 |
| 1911 | 17 |
| 1912 | 35 |
| 1913 | 31 |
| 1914 | 49 |
| 1915 | 52 |
| 1916 | 52 |
| 1917 | 30 |
| 1918 | 69 |
| 1919 | 58 |
| 1920 | 47 |
| 1921 | 51 |
| 1922 | 85 |
| 1923 | 73 |
| 1924 | 72 |
| 1925 | 19 |
| 1926 | 20 |
| 1927 | 75 |
| 1928 | 27 |
| 1929 | 62 |
| 1930 | 41 |
| 1931 | 33 |
| 1932 | 27 |
| 1933 | 7 |
| 1934 | 10 |
| 1937 | 18 |
| 1939 | 10 |
| 1942 | 10 |
| 1943 | 5 |
| 1949 | 12 |
| 1956 | 5 |