| Year | Count |
|---|---|
| 1963 | 5 |
| 1970 | 5 |
| 1971 | 5 |
| 1994 | 17 |
| 1998 | 13 |
| 1999 | 15 |
| 2000 | 10 |
| 2001 | 26 |
| 2002 | 20 |
| 2003 | 48 |
| 2004 | 60 |
| 2005 | 52 |
| 2006 | 58 |
| 2007 | 34 |
| 2008 | 61 |
| 2009 | 84 |
| 2010 | 50 |
| 2011 | 50 |
| 2012 | 55 |
| 2013 | 52 |
| 2014 | 31 |
| 2015 | 51 |
| 2016 | 28 |
| 2017 | 33 |
| 2018 | 24 |
| 2019 | 10 |
| 2020 | 16 |
| 2021 | 49 |
| 2022 | 35 |
| 2023 | 29 |
| 2024 | 25 |