| Year | Count |
|---|---|
| 1910 | 16 |
| 1911 | 5 |
| 1913 | 5 |
| 1915 | 15 |
| 1916 | 17 |
| 1919 | 5 |
| 1920 | 16 |
| 1921 | 12 |
| 1922 | 28 |
| 1926 | 10 |
| 1927 | 41 |
| 1929 | 20 |
| 1935 | 5 |
| 1942 | 5 |
| 1947 | 5 |
| 1949 | 5 |
| 2004 | 10 |
| 2005 | 10 |
| 2006 | 18 |
| 2007 | 13 |
| 2008 | 5 |
| 2009 | 10 |
| 2010 | 18 |
| 2011 | 11 |
| 2012 | 23 |
| 2013 | 20 |
| 2014 | 18 |
| 2015 | 99 |
| 2016 | 139 |
| 2017 | 109 |
| 2018 | 84 |
| 2019 | 46 |
| 2020 | 97 |
| 2021 | 66 |
| 2022 | 79 |
| 2023 | 70 |
| 2024 | 58 |