| Year | Count |
|---|---|
| 1991 | 5 |
| 1992 | 25 |
| 1993 | 23 |
| 1994 | 58 |
| 1995 | 80 |
| 1996 | 123 |
| 1997 | 198 |
| 1998 | 362 |
| 1999 | 380 |
| 2000 | 373 |
| 2000 | 6 |
| 2001 | 503 |
| 2002 | 654 |
| 2002 | 5 |
| 2003 | 857 |
| 2003 | 10 |
| 2004 | 1,328 |
| 2004 | 12 |
| 2005 | 1,282 |
| 2005 | 17 |
| 2006 | 1,307 |
| 2006 | 9 |
| 2007 | 1,262 |
| 2007 | 5 |
| 2008 | 1,314 |
| 2008 | 5 |
| 2009 | 1,062 |
| 2009 | 14 |
| 2010 | 1,034 |
| 2010 | 6 |
| 2011 | 1,084 |
| 2011 | 17 |
| 2012 | 1,003 |
| 2012 | 16 |
| 2013 | 910 |
| 2014 | 865 |
| 2014 | 14 |
| 2015 | 940 |
| 2016 | 1,178 |
| 2017 | 1,014 |
| 2018 | 1,038 |
| 2019 | 1,026 |
| 2019 | 6 |
| 2020 | 960 |
| 2021 | 864 |
| 2022 | 784 |
| 2023 | 623 |
| 2023 | 5 |
| 2024 | 680 |