| Year | Count |
|---|---|
| 2002 | 42 |
| 2003 | 394 |
| 2004 | 27 |
| 2004 | 870 |
| 2005 | 60 |
| 2005 | 1,510 |
| 2006 | 27 |
| 2006 | 1,826 |
| 2007 | 36 |
| 2007 | 1,833 |
| 2008 | 2,241 |
| 2009 | 2,615 |
| 2010 | 16 |
| 2010 | 2,529 |
| 2011 | 21 |
| 2011 | 2,644 |
| 2012 | 20 |
| 2012 | 2,891 |
| 2013 | 20 |
| 2013 | 3,087 |
| 2014 | 61 |
| 2014 | 3,091 |
| 2015 | 43 |
| 2015 | 3,919 |
| 2016 | 88 |
| 2016 | 4,005 |
| 2017 | 51 |
| 2017 | 4,144 |
| 2018 | 40 |
| 2018 | 3,690 |
| 2019 | 52 |
| 2019 | 3,256 |
| 2020 | 21 |
| 2020 | 2,552 |
| 2021 | 56 |
| 2021 | 2,665 |
| 2022 | 53 |
| 2022 | 2,460 |
| 2023 | 65 |
| 2023 | 2,126 |
| 2024 | 52 |
| 2024 | 1,840 |