| Year | Count |
|---|---|
| 1911 | 5 |
| 1912 | 10 |
| 1913 | 5 |
| 1914 | 39 |
| 1915 | 32 |
| 1916 | 52 |
| 1917 | 40 |
| 1918 | 61 |
| 1919 | 13 |
| 1920 | 50 |
| 1921 | 20 |
| 1922 | 44 |
| 1923 | 27 |
| 1924 | 23 |
| 1925 | 10 |
| 1926 | 29 |
| 1927 | 28 |
| 1928 | 32 |
| 1929 | 31 |
| 1930 | 25 |
| 1931 | 46 |
| 1932 | 41 |
| 1933 | 7 |
| 1934 | 11 |
| 1935 | 10 |
| 1936 | 7 |
| 1937 | 7 |
| 1938 | 12 |
| 1940 | 6 |
| 1942 | 5 |
| 1953 | 5 |