| Year | Count |
|---|---|
| 1991 | 33 |
| 1992 | 33 |
| 1993 | 10 |
| 1994 | 48 |
| 1995 | 61 |
| 1996 | 26 |
| 1997 | 12 |
| 1998 | 14 |
| 1999 | 40 |
| 2000 | 74 |
| 2001 | 74 |
| 2002 | 12 |
| 2002 | 72 |
| 2003 | 132 |
| 2004 | 125 |
| 2005 | 116 |
| 2006 | 125 |
| 2007 | 19 |
| 2007 | 142 |
| 2008 | 175 |
| 2009 | 11 |
| 2009 | 118 |
| 2010 | 5 |
| 2010 | 159 |
| 2011 | 22 |
| 2011 | 190 |
| 2012 | 35 |
| 2012 | 198 |
| 2013 | 32 |
| 2013 | 166 |
| 2014 | 117 |
| 2014 | 224 |
| 2015 | 405 |
| 2015 | 242 |
| 2016 | 356 |
| 2016 | 211 |
| 2017 | 511 |
| 2017 | 319 |
| 2018 | 476 |
| 2018 | 332 |
| 2019 | 635 |
| 2019 | 387 |
| 2020 | 591 |
| 2020 | 406 |
| 2021 | 732 |
| 2021 | 479 |
| 2022 | 772 |
| 2022 | 412 |
| 2023 | 691 |
| 2023 | 433 |
| 2024 | 731 |
| 2024 | 438 |