| Year | Count |
|---|---|
| 1912 | 5 |
| 1913 | 7 |
| 1914 | 6 |
| 1915 | 14 |
| 1916 | 7 |
| 1918 | 12 |
| 1922 | 5 |
| 1991 | 5 |
| 1992 | 5 |
| 1993 | 11 |
| 1997 | 11 |
| 1998 | 10 |
| 1999 | 5 |
| 2000 | 6 |
| 2001 | 5 |
| 2002 | 5 |
| 2004 | 27 |
| 2005 | 34 |
| 2006 | 44 |
| 2007 | 35 |
| 2008 | 71 |
| 2009 | 63 |
| 2010 | 137 |
| 2011 | 127 |
| 2012 | 105 |
| 2013 | 157 |
| 2014 | 172 |
| 2015 | 218 |
| 2016 | 261 |
| 2017 | 258 |
| 2018 | 259 |
| 2019 | 333 |
| 2020 | 317 |
| 2021 | 282 |
| 2022 | 403 |
| 2023 | 389 |
| 2024 | 546 |