| Year | Count |
|---|---|
| 1913 | 6 |
| 1916 | 6 |
| 1917 | 8 |
| 1918 | 5 |
| 1919 | 8 |
| 1920 | 7 |
| 1921 | 8 |
| 1922 | 9 |
| 1923 | 5 |
| 1924 | 7 |
| 1925 | 6 |
| 1926 | 6 |
| 1927 | 8 |
| 1928 | 7 |
| 1930 | 8 |
| 1933 | 9 |
| 1935 | 6 |
| 1936 | 6 |
| 1937 | 6 |
| 1940 | 6 |
| 1941 | 7 |
| 1944 | 5 |
| 1945 | 6 |
| 1948 | 5 |
| 1996 | 5 |
| 2000 | 5 |
| 2001 | 6 |
| 2005 | 8 |
| 2006 | 5 |
| 2007 | 6 |
| 2010 | 7 |
| 2011 | 7 |
| 2014 | 5 |
| 2015 | 14 |
| 2016 | 14 |
| 2017 | 10 |
| 2019 | 5 |