| Year | Count |
|---|---|
| 1947 | 7 |
| 1948 | 6 |
| 1993 | 16 |
| 1994 | 25 |
| 1995 | 63 |
| 1996 | 88 |
| 1997 | 181 |
| 1998 | 375 |
| 1999 | 352 |
| 2000 | 490 |
| 2001 | 547 |
| 2002 | 513 |
| 2003 | 531 |
| 2004 | 663 |
| 2005 | 668 |
| 2006 | 674 |
| 2007 | 822 |
| 2008 | 977 |
| 2009 | 882 |
| 2010 | 844 |
| 2011 | 886 |
| 2012 | 941 |
| 2013 | 831 |
| 2014 | 691 |
| 2015 | 862 |
| 2016 | 757 |
| 2017 | 766 |
| 2018 | 670 |
| 2019 | 708 |
| 2020 | 643 |
| 2021 | 666 |
| 2022 | 785 |
| 2023 | 731 |
| 2024 | 648 |