| Year | Count |
|---|---|
| 1913 | 5 |
| 1915 | 8 |
| 1916 | 20 |
| 1917 | 5 |
| 1918 | 17 |
| 1919 | 11 |
| 1920 | 6 |
| 1921 | 26 |
| 1922 | 8 |
| 1923 | 21 |
| 1924 | 15 |
| 1925 | 23 |
| 1926 | 26 |
| 1927 | 34 |
| 1928 | 39 |
| 1929 | 18 |
| 1930 | 31 |
| 1931 | 24 |
| 1932 | 24 |
| 1933 | 26 |
| 1934 | 13 |
| 1935 | 27 |
| 1936 | 8 |
| 1937 | 13 |
| 1938 | 13 |
| 1939 | 9 |
| 1940 | 19 |
| 1941 | 12 |
| 1943 | 39 |
| 1950 | 9 |
| 1951 | 8 |
| 1952 | 8 |
| 1953 | 5 |
| 1956 | 6 |
| 1957 | 12 |
| 1958 | 8 |
| 1959 | 5 |
| 1968 | 5 |