| Year | Count |
|---|---|
| 1914 | 14 |
| 1915 | 16 |
| 1916 | 12 |
| 1917 | 10 |
| 1918 | 16 |
| 1919 | 5 |
| 1920 | 11 |
| 1921 | 16 |
| 1922 | 28 |
| 1923 | 8 |
| 1924 | 11 |
| 1925 | 7 |
| 1926 | 17 |
| 1927 | 20 |
| 1928 | 18 |
| 1929 | 15 |
| 1930 | 18 |
| 1931 | 16 |
| 1932 | 26 |
| 1933 | 14 |
| 1934 | 11 |
| 1935 | 16 |
| 1936 | 8 |
| 1937 | 9 |
| 1938 | 5 |
| 1939 | 7 |
| 1940 | 8 |
| 1950 | 7 |
| 1951 | 9 |
| 1952 | 6 |
| 1957 | 5 |
| 1961 | 9 |
| 1963 | 5 |
| 1966 | 5 |
| 1967 | 11 |
| 1972 | 5 |
| 1974 | 7 |
| 1975 | 9 |
| 1976 | 7 |
| 1977 | 5 |
| 1978 | 6 |
| 1979 | 15 |
| 1980 | 7 |
| 1981 | 11 |
| 1982 | 8 |
| 1984 | 8 |
| 1985 | 12 |
| 1986 | 12 |
| 1987 | 17 |
| 1988 | 10 |
| 1993 | 5 |
| 1995 | 7 |
| 1996 | 8 |
| 1997 | 21 |
| 1998 | 54 |
| 2002 | 6 |
| 2004 | 21 |
| 2005 | 10 |
| 2006 | 5 |
| 2014 | 5 |
| 2017 | 5 |
| 2018 | 8 |
| 2022 | 10 |
| 2024 | 6 |