| Year | Count |
|---|---|
| 1915 | 5 |
| 1924 | 10 |
| 1994 | 6 |
| 1996 | 20 |
| 1997 | 17 |
| 1998 | 38 |
| 1999 | 28 |
| 2000 | 11 |
| 2001 | 20 |
| 2002 | 30 |
| 2003 | 40 |
| 2004 | 49 |
| 2005 | 51 |
| 2006 | 38 |
| 2007 | 74 |
| 2008 | 47 |
| 2009 | 35 |
| 2010 | 43 |
| 2011 | 93 |
| 2012 | 67 |
| 2013 | 149 |
| 2014 | 417 |
| 2015 | 451 |
| 2016 | 560 |
| 2017 | 721 |
| 2018 | 655 |
| 2019 | 1,044 |
| 2020 | 841 |
| 2021 | 887 |
| 2022 | 1,097 |
| 2023 | 1,278 |
| 2024 | 1,403 |