| Year | Count |
|---|---|
| 1913 | 17 |
| 1914 | 10 |
| 1915 | 26 |
| 1916 | 51 |
| 1917 | 27 |
| 1918 | 27 |
| 1919 | 44 |
| 1920 | 45 |
| 1921 | 39 |
| 1922 | 45 |
| 1923 | 41 |
| 1924 | 46 |
| 1925 | 37 |
| 1926 | 41 |
| 1927 | 54 |
| 1928 | 59 |
| 1929 | 24 |
| 1930 | 43 |
| 1931 | 15 |
| 1932 | 12 |
| 1933 | 32 |
| 1934 | 30 |
| 1937 | 26 |
| 1939 | 33 |
| 1940 | 5 |
| 1941 | 7 |
| 1942 | 23 |
| 1944 | 9 |
| 1946 | 5 |
| 1948 | 24 |
| 1951 | 8 |
| 1953 | 6 |
| 1954 | 6 |