| Year | Count |
|---|---|
| 1913 | 5 |
| 1914 | 9 |
| 1915 | 8 |
| 1916 | 15 |
| 1917 | 17 |
| 1918 | 20 |
| 1919 | 6 |
| 1920 | 16 |
| 1921 | 16 |
| 1922 | 33 |
| 1923 | 28 |
| 1924 | 27 |
| 1925 | 21 |
| 1926 | 26 |
| 1927 | 18 |
| 1928 | 31 |
| 1929 | 24 |
| 1930 | 26 |
| 1931 | 13 |
| 1932 | 5 |
| 1933 | 6 |
| 1934 | 5 |
| 1935 | 5 |
| 1937 | 6 |
| 1938 | 7 |
| 1939 | 6 |
| 1942 | 8 |
| 1950 | 5 |
| 1958 | 10 |
| 1966 | 5 |
| 1970 | 5 |
| 1977 | 12 |
| 1979 | 10 |
| 1985 | 5 |
| 1988 | 5 |
| 1990 | 5 |
| 1993 | 5 |
| 1995 | 7 |
| 1996 | 6 |
| 1998 | 9 |
| 2000 | 7 |
| 2001 | 5 |
| 2002 | 15 |
| 2005 | 5 |
| 2006 | 10 |
| 2007 | 6 |
| 2008 | 5 |
| 2009 | 5 |
| 2011 | 13 |
| 2013 | 8 |
| 2014 | 7 |
| 2017 | 20 |
| 2018 | 6 |
| 2023 | 14 |
| 2024 | 12 |