| Year | Count |
|---|---|
| 1993 | 6 |
| 1997 | 8 |
| 1999 | 6 |
| 2000 | 10 |
| 2001 | 8 |
| 2002 | 14 |
| 2003 | 19 |
| 2004 | 8 |
| 2005 | 5 |
| 2005 | 18 |
| 2006 | 21 |
| 2007 | 31 |
| 2008 | 39 |
| 2009 | 52 |
| 2010 | 39 |
| 2011 | 7 |
| 2011 | 39 |
| 2012 | 55 |
| 2013 | 40 |
| 2014 | 69 |
| 2015 | 68 |
| 2016 | 142 |
| 2017 | 172 |
| 2018 | 10 |
| 2018 | 144 |
| 2019 | 130 |
| 2020 | 65 |
| 2021 | 53 |
| 2022 | 63 |
| 2023 | 64 |
| 2024 | 66 |