| Year | Count |
|---|---|
| 1983 | 5 |
| 1991 | 20 |
| 1993 | 10 |
| 1996 | 12 |
| 1997 | 14 |
| 1998 | 16 |
| 1999 | 8 |
| 2000 | 38 |
| 2001 | 31 |
| 2002 | 33 |
| 2003 | 18 |
| 2004 | 29 |
| 2005 | 37 |
| 2006 | 30 |
| 2007 | 56 |
| 2008 | 22 |
| 2009 | 42 |
| 2010 | 47 |
| 2011 | 34 |
| 2012 | 52 |
| 2013 | 84 |
| 2014 | 101 |
| 2015 | 112 |
| 2016 | 117 |
| 2017 | 131 |
| 2018 | 68 |
| 2019 | 92 |
| 2020 | 78 |
| 2021 | 59 |
| 2022 | 95 |
| 2023 | 68 |
| 2024 | 88 |