| Year | Count |
|---|---|
| 1912 | 6 |
| 1914 | 5 |
| 1915 | 17 |
| 1916 | 14 |
| 1917 | 14 |
| 1918 | 15 |
| 1919 | 14 |
| 1920 | 15 |
| 1921 | 12 |
| 1922 | 8 |
| 1923 | 11 |
| 1924 | 16 |
| 1925 | 13 |
| 1926 | 7 |
| 1927 | 14 |
| 1929 | 11 |
| 1930 | 7 |
| 1932 | 8 |
| 1938 | 5 |
| 1942 | 6 |
| 1947 | 5 |
| 1951 | 7 |
| 1954 | 5 |
| 2005 | 10 |
| 2007 | 5 |
| 2009 | 5 |
| 2010 | 5 |
| 2011 | 9 |
| 2013 | 10 |
| 2014 | 9 |
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 22 |
| 2018 | 32 |
| 2019 | 30 |
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 21 |
| 2024 | 22 |