| Year | Count |
|---|---|
| 1925 | 26 |
| 1926 | 18 |
| 1927 | 16 |
| 1928 | 39 |
| 1929 | 30 |
| 1930 | 42 |
| 1931 | 57 |
| 1932 | 102 |
| 1933 | 64 |
| 1934 | 63 |
| 1935 | 48 |
| 1936 | 96 |
| 1937 | 93 |
| 1938 | 74 |
| 1939 | 70 |
| 1940 | 52 |
| 1941 | 41 |
| 1942 | 69 |
| 1943 | 48 |
| 1944 | 45 |
| 1945 | 19 |
| 1946 | 47 |
| 1947 | 88 |
| 1948 | 16 |
| 1949 | 23 |
| 1950 | 30 |
| 1952 | 39 |
| 1953 | 6 |
| 1954 | 42 |
| 1955 | 10 |
| 1956 | 13 |
| 1957 | 16 |
| 1962 | 5 |
| 1963 | 6 |
| 1964 | 17 |
| 1965 | 7 |
| 1967 | 5 |
| 1968 | 5 |
| 1969 | 5 |
| 1970 | 8 |
| 1971 | 16 |
| 1972 | 9 |
| 1973 | 9 |
| 1977 | 12 |
| 1991 | 5 |
| 2000 | 10 |
| 2004 | 5 |
| 2005 | 10 |
| 2006 | 5 |
| 2007 | 5 |
| 2008 | 7 |
| 2010 | 5 |
| 2014 | 6 |
| 2015 | 7 |
| 2019 | 5 |
| 2021 | 5 |