| Year | Count |
|---|---|
| 1996 | 5 |
| 1997 | 5 |
| 1998 | 8 |
| 1999 | 9 |
| 2000 | 17 |
| 2001 | 20 |
| 2002 | 13 |
| 2003 | 21 |
| 2004 | 41 |
| 2005 | 26 |
| 2006 | 42 |
| 2007 | 61 |
| 2008 | 68 |
| 2009 | 6 |
| 2009 | 68 |
| 2010 | 76 |
| 2011 | 58 |
| 2012 | 80 |
| 2013 | 74 |
| 2014 | 68 |
| 2015 | 95 |
| 2016 | 232 |
| 2017 | 212 |
| 2018 | 268 |
| 2019 | 236 |
| 2020 | 107 |
| 2021 | 98 |
| 2022 | 99 |
| 2023 | 113 |
| 2024 | 81 |