| Year | Count |
|---|---|
| 1914 | 7 |
| 1995 | 7 |
| 1997 | 5 |
| 1998 | 26 |
| 2000 | 12 |
| 2001 | 11 |
| 2002 | 53 |
| 2003 | 97 |
| 2004 | 215 |
| 2005 | 318 |
| 2006 | 468 |
| 2007 | 495 |
| 2008 | 516 |
| 2009 | 712 |
| 2010 | 879 |
| 2011 | 1,079 |
| 2012 | 1,524 |
| 2013 | 1,525 |
| 2014 | 1,913 |
| 2015 | 1,834 |
| 2016 | 2,157 |
| 2017 | 2,206 |
| 2018 | 1,875 |
| 2019 | 1,680 |
| 2020 | 1,464 |
| 2021 | 1,680 |
| 2022 | 1,525 |
| 2023 | 1,497 |
| 2024 | 1,588 |