| Year | Count |
|---|---|
| 1916 | 10 |
| 1920 | 6 |
| 1921 | 18 |
| 1922 | 47 |
| 1923 | 32 |
| 1924 | 14 |
| 1925 | 13 |
| 1926 | 16 |
| 1927 | 36 |
| 1928 | 26 |
| 1929 | 24 |
| 1930 | 31 |
| 1931 | 89 |
| 1932 | 45 |
| 1933 | 37 |
| 1934 | 30 |
| 1935 | 38 |
| 1936 | 39 |
| 1937 | 43 |
| 1938 | 29 |
| 1939 | 29 |
| 1940 | 15 |
| 1941 | 26 |
| 1942 | 21 |
| 1946 | 10 |
| 1947 | 15 |
| 1948 | 9 |
| 1950 | 10 |
| 1952 | 10 |
| 1956 | 23 |
| 1957 | 12 |
| 1959 | 20 |
| 1960 | 10 |
| 1962 | 10 |
| 1963 | 5 |
| 1964 | 5 |
| 1968 | 6 |
| 1969 | 7 |
| 1979 | 6 |