| Year | Count |
|---|---|
| 1910 | 5 |
| 1913 | 6 |
| 1917 | 8 |
| 1918 | 5 |
| 1920 | 10 |
| 1920 | 12 |
| 1921 | 16 |
| 1922 | 6 |
| 1924 | 52 |
| 1925 | 34 |
| 1926 | 20 |
| 1927 | 5 |
| 1928 | 6 |
| 1929 | 18 |
| 1930 | 12 |
| 1931 | 5 |
| 1932 | 14 |
| 1933 | 29 |
| 1934 | 25 |
| 1936 | 18 |
| 1937 | 34 |
| 1938 | 7 |
| 1939 | 7 |
| 1940 | 5 |
| 1941 | 14 |
| 1942 | 17 |
| 1943 | 8 |
| 1944 | 5 |
| 1945 | 8 |
| 1946 | 12 |
| 1947 | 5 |
| 1948 | 7 |
| 1949 | 6 |
| 1951 | 17 |
| 1954 | 14 |
| 1956 | 8 |
| 1959 | 5 |