| Year | Count |
|---|---|
| 1912 | 11 |
| 1913 | 11 |
| 1914 | 12 |
| 1915 | 27 |
| 1916 | 33 |
| 1917 | 39 |
| 1918 | 86 |
| 1919 | 67 |
| 1920 | 39 |
| 1921 | 67 |
| 1922 | 52 |
| 1923 | 34 |
| 1924 | 45 |
| 1925 | 53 |
| 1926 | 49 |
| 1927 | 32 |
| 1928 | 35 |
| 1929 | 17 |
| 1930 | 5 |
| 1931 | 14 |
| 1932 | 10 |
| 1933 | 21 |
| 1934 | 10 |
| 1935 | 10 |
| 1936 | 6 |
| 1938 | 12 |
| 1939 | 6 |
| 1940 | 22 |
| 1942 | 5 |
| 1943 | 5 |
| 1945 | 11 |
| 1949 | 12 |
| 1951 | 12 |
| 1959 | 12 |