| Year | Count |
|---|---|
| 1990 | 5 |
| 1992 | 6 |
| 1993 | 9 |
| 1993 | 5 |
| 1994 | 10 |
| 1996 | 25 |
| 1997 | 58 |
| 1997 | 7 |
| 1998 | 59 |
| 1999 | 45 |
| 2000 | 8 |
| 2001 | 11 |
| 2001 | 6 |
| 2002 | 49 |
| 2003 | 46 |
| 2004 | 21 |
| 2005 | 64 |
| 2006 | 63 |
| 2007 | 76 |
| 2008 | 96 |
| 2008 | 7 |
| 2009 | 137 |
| 2009 | 9 |
| 2010 | 171 |
| 2010 | 10 |
| 2011 | 187 |
| 2011 | 17 |
| 2012 | 164 |
| 2012 | 6 |
| 2013 | 284 |
| 2013 | 15 |
| 2014 | 417 |
| 2014 | 21 |
| 2015 | 727 |
| 2015 | 37 |
| 2016 | 1,319 |
| 2016 | 137 |
| 2017 | 1,567 |
| 2017 | 183 |
| 2018 | 1,823 |
| 2018 | 140 |
| 2019 | 2,152 |
| 2019 | 229 |
| 2020 | 2,413 |
| 2020 | 223 |
| 2021 | 2,708 |
| 2021 | 329 |
| 2022 | 2,938 |
| 2022 | 297 |
| 2023 | 2,623 |
| 2023 | 233 |
| 2024 | 2,326 |
| 2024 | 236 |