| Year | Count |
|---|---|
| 1986 | 11 |
| 1990 | 5 |
| 1991 | 41 |
| 1992 | 33 |
| 1993 | 18 |
| 1994 | 47 |
| 1995 | 49 |
| 1996 | 59 |
| 1997 | 59 |
| 1998 | 74 |
| 1999 | 39 |
| 2000 | 94 |
| 2000 | 10 |
| 2001 | 93 |
| 2001 | 20 |
| 2002 | 60 |
| 2003 | 127 |
| 2003 | 12 |
| 2004 | 98 |
| 2005 | 65 |
| 2005 | 5 |
| 2006 | 88 |
| 2007 | 50 |
| 2008 | 70 |
| 2009 | 25 |
| 2009 | 16 |
| 2010 | 6 |
| 2011 | 10 |
| 2013 | 7 |
| 2014 | 5 |
| 2015 | 10 |
| 2015 | 10 |
| 2016 | 5 |
| 2016 | 22 |
| 2017 | 10 |
| 2018 | 10 |
| 2020 | 5 |
| 2020 | 19 |
| 2022 | 6 |
| 2023 | 6 |