| Year | Count |
|---|---|
| 1914 | 13 |
| 1915 | 16 |
| 1916 | 15 |
| 1917 | 36 |
| 1918 | 44 |
| 1919 | 35 |
| 1921 | 34 |
| 1922 | 59 |
| 1923 | 15 |
| 1924 | 18 |
| 1925 | 5 |
| 1926 | 16 |
| 1927 | 12 |
| 1928 | 19 |
| 1929 | 11 |
| 1932 | 22 |
| 1933 | 25 |
| 1934 | 12 |
| 1935 | 24 |
| 1936 | 23 |
| 1937 | 27 |
| 1938 | 14 |
| 1939 | 10 |
| 1940 | 18 |
| 1942 | 6 |
| 1943 | 5 |
| 1945 | 5 |
| 1948 | 10 |
| 1949 | 10 |
| 1951 | 10 |
| 1956 | 10 |