| Year | Count |
|---|---|
| 1995 | 10 |
| 1996 | 16 |
| 1997 | 49 |
| 1998 | 79 |
| 1999 | 257 |
| 1999 | 9 |
| 2000 | 389 |
| 2000 | 37 |
| 2001 | 606 |
| 2001 | 157 |
| 2002 | 848 |
| 2002 | 118 |
| 2003 | 1,347 |
| 2003 | 125 |
| 2004 | 1,467 |
| 2004 | 214 |
| 2005 | 1,738 |
| 2005 | 284 |
| 2006 | 1,431 |
| 2006 | 281 |
| 2007 | 1,326 |
| 2007 | 301 |
| 2008 | 944 |
| 2008 | 335 |
| 2009 | 737 |
| 2009 | 275 |
| 2010 | 461 |
| 2010 | 223 |
| 2011 | 282 |
| 2011 | 148 |
| 2012 | 193 |
| 2012 | 63 |
| 2013 | 143 |
| 2013 | 55 |
| 2014 | 76 |
| 2014 | 33 |
| 2015 | 49 |
| 2015 | 44 |
| 2016 | 53 |
| 2016 | 20 |
| 2017 | 9 |
| 2017 | 6 |
| 2018 | 6 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 10 |
| 2023 | 11 |