| Year | Count |
|---|---|
| 1910 | 12 |
| 1911 | 10 |
| 1912 | 21 |
| 1913 | 20 |
| 1914 | 28 |
| 1915 | 37 |
| 1916 | 31 |
| 1917 | 21 |
| 1918 | 33 |
| 1919 | 15 |
| 1920 | 12 |
| 1921 | 18 |
| 1922 | 20 |
| 1923 | 12 |
| 1924 | 10 |
| 1925 | 10 |
| 1926 | 18 |
| 1929 | 14 |
| 1931 | 11 |
| 1932 | 5 |
| 1934 | 7 |
| 1936 | 6 |
| 1943 | 6 |
| 2004 | 5 |
| 2005 | 5 |
| 2006 | 6 |
| 2007 | 6 |
| 2008 | 5 |
| 2009 | 5 |
| 2011 | 6 |
| 2012 | 7 |
| 2013 | 7 |
| 2015 | 18 |