| Year | Count |
|---|---|
| 1913 | 16 |
| 1914 | 21 |
| 1915 | 62 |
| 1916 | 83 |
| 1917 | 84 |
| 1918 | 133 |
| 1919 | 132 |
| 1920 | 80 |
| 1921 | 91 |
| 1922 | 132 |
| 1923 | 122 |
| 1924 | 120 |
| 1925 | 129 |
| 1926 | 93 |
| 1927 | 64 |
| 1928 | 77 |
| 1929 | 21 |
| 1930 | 11 |
| 1936 | 20 |
| 1937 | 5 |
| 1945 | 5 |
| 1950 | 5 |
| 1983 | 10 |
| 1990 | 5 |
| 1997 | 6 |
| 2004 | 16 |
| 2005 | 5 |
| 2006 | 9 |
| 2007 | 7 |
| 2008 | 11 |
| 2011 | 5 |
| 2014 | 5 |
| 2016 | 10 |
| 2018 | 7 |
| 2020 | 5 |