| Year | Count |
|---|---|
| 2009 | 39 |
| 2010 | 56 |
| 2011 | 25 |
| 2011 | 42 |
| 2012 | 16 |
| 2012 | 66 |
| 2013 | 38 |
| 2013 | 126 |
| 2014 | 77 |
| 2014 | 265 |
| 2015 | 154 |
| 2015 | 355 |
| 2016 | 156 |
| 2016 | 518 |
| 2017 | 182 |
| 2017 | 510 |
| 2018 | 175 |
| 2018 | 536 |
| 2019 | 112 |
| 2019 | 526 |
| 2020 | 166 |
| 2020 | 479 |
| 2021 | 111 |
| 2021 | 558 |
| 2022 | 138 |
| 2022 | 480 |
| 2023 | 71 |
| 2023 | 381 |
| 2024 | 51 |
| 2024 | 367 |