| Year | Count |
|---|---|
| 1914 | 5 |
| 1915 | 5 |
| 1916 | 27 |
| 1918 | 6 |
| 1919 | 27 |
| 1920 | 25 |
| 1921 | 20 |
| 1922 | 31 |
| 1923 | 7 |
| 1925 | 11 |
| 1927 | 25 |
| 1928 | 7 |
| 1929 | 5 |
| 1931 | 15 |
| 1934 | 5 |
| 1936 | 12 |
| 1938 | 8 |
| 1940 | 5 |
| 1941 | 20 |
| 1942 | 5 |
| 1943 | 7 |
| 1963 | 5 |
| 2006 | 10 |
| 2007 | 10 |
| 2008 | 19 |
| 2009 | 7 |
| 2010 | 15 |
| 2011 | 33 |
| 2013 | 5 |
| 2014 | 21 |
| 2015 | 23 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 5 |
| 2022 | 18 |
| 2024 | 18 |