| Year | Count |
|---|---|
| 1922 | 9 |
| 1924 | 7 |
| 1925 | 6 |
| 1926 | 9 |
| 1928 | 21 |
| 1929 | 25 |
| 1930 | 35 |
| 1931 | 20 |
| 1932 | 29 |
| 1933 | 10 |
| 1934 | 33 |
| 1935 | 45 |
| 1936 | 20 |
| 1937 | 26 |
| 1938 | 23 |
| 1939 | 13 |
| 1940 | 16 |
| 1941 | 19 |
| 1942 | 5 |
| 1943 | 12 |
| 1945 | 14 |
| 1946 | 10 |
| 1949 | 10 |
| 1951 | 10 |
| 1952 | 7 |
| 1953 | 18 |
| 1954 | 17 |
| 1955 | 27 |
| 1957 | 21 |
| 1958 | 5 |
| 1959 | 10 |
| 1961 | 15 |
| 1963 | 5 |
| 1969 | 5 |
| 1976 | 10 |
| 1977 | 5 |
| 1980 | 6 |
| 1983 | 5 |
| 1993 | 5 |
| 1994 | 5 |