| Date | Protections | ≤ 1 day | ≤ 1 week | ≤ 1 month | ≤ 1 year | > 1 year | Infinity | Unprotections |
|---|---|---|---|---|---|---|---|---|
| 2023 | 2,023 | 33 | 386 | 413 | 468 | 374 | 780 | 66 |
| 2022 | 2,292 | 19 | 374 | 508 | 918 | 18 | 623 | 99 |
| 2021 | 2,687 | 67 | 475 | 543 | 837 | 31 | 1,231 | 919 |
| 2020 | 7,475 | 38 | 779 | 2,249 | 3,346 | 297 | 1,206 | 734 |
| 2019 | 7,874 | 94 | 768 | 1,525 | 2,667 | 745 | 2,494 | 301 |
| 2018 | 9,616 | 114 | 903 | 1,714 | 3,105 | 172 | 9,587 | 327 |
| 2017 | 10,420 | 166 | 1,308 | 2,711 | 3,437 | 57 | 3,345 | 168 |
| 2016 | 14,308 | 155 | 1,396 | 2,125 | 2,282 | 118 | 9,098 | 255 |
| 2015 | 5,374 | 52 | 315 | 324 | 319 | 91 | 251 | 81 |
| 2014 | 3,806 | 84 | ||||||
| 2013 | 4,433 | 253 | ||||||
| 2012 | 8,102 | 382 | ||||||
| 2011 | 6,721 | 322 | ||||||
| 2010 | 5,485 | 219 | ||||||
| 2009 | 7,386 | 406 | ||||||
| 2008 | 8,698 | 900 | ||||||
| 2007 | 2,361 | 857 | ||||||
| 2006 | 883 | 405 | ||||||
| 2005 | 342 | 131 | ||||||
| 2004 | 1 | 2 | ||||||
| 2003 | ||||||||
| 2002 | ||||||||
| 2001 |