| Year | Count |
|---|---|
| 1985 | 10 |
| 1986 | 22 |
| 1988 | 25 |
| 1989 | 47 |
| 1990 | 5 |
| 1991 | 53 |
| 1992 | 22 |
| 1993 | 37 |
| 1994 | 32 |
| 1995 | 30 |
| 1996 | 39 |
| 1997 | 39 |
| 1998 | 51 |
| 1999 | 11 |
| 2000 | 21 |
| 2001 | 12 |
| 2002 | 5 |
| 2003 | 36 |
| 2004 | 24 |
| 2005 | 14 |
| 2006 | 8 |
| 2007 | 13 |
| 2008 | 59 |
| 2010 | 6 |
| 2012 | 10 |
| 2014 | 21 |
| 2016 | 12 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 28 |
| 2020 | 8 |
| 2021 | 33 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 5 |