| Year | Count |
|---|---|
| 1979 | 5 |
| 1995 | 6 |
| 1998 | 6 |
| 1999 | 11 |
| 2000 | 5 |
| 2001 | 5 |
| 2002 | 5 |
| 2003 | 12 |
| 2004 | 5 |
| 2005 | 11 |
| 2006 | 12 |
| 2007 | 20 |
| 2008 | 30 |
| 2009 | 30 |
| 2010 | 6 |
| 2010 | 32 |
| 2011 | 35 |
| 2012 | 28 |
| 2013 | 30 |
| 2014 | 38 |
| 2015 | 33 |
| 2016 | 66 |
| 2017 | 78 |
| 2018 | 58 |
| 2019 | 104 |
| 2020 | 46 |
| 2021 | 28 |
| 2022 | 49 |
| 2023 | 10 |
| 2023 | 43 |
| 2024 | 10 |
| 2024 | 62 |