| Year | Count |
|---|---|
| 1911 | 6 |
| 1912 | 15 |
| 1913 | 14 |
| 1914 | 31 |
| 1915 | 47 |
| 1916 | 48 |
| 1917 | 52 |
| 1918 | 55 |
| 1919 | 51 |
| 1920 | 25 |
| 1921 | 83 |
| 1922 | 35 |
| 1923 | 49 |
| 1924 | 20 |
| 1925 | 20 |
| 1926 | 19 |
| 1927 | 16 |
| 1928 | 31 |
| 1929 | 10 |
| 1930 | 25 |
| 1931 | 7 |
| 1932 | 20 |
| 1933 | 6 |
| 1934 | 12 |
| 1936 | 6 |
| 1937 | 13 |
| 1939 | 5 |
| 1940 | 12 |
| 1941 | 10 |
| 1942 | 5 |
| 1974 | 5 |