| Date | Protections | ≤ 1 day | ≤ 1 week | ≤ 1 month | ≤ 1 year | > 1 year | Infinity | Unprotections |
|---|---|---|---|---|---|---|---|---|
| 2023 | 2,936 | 7 | 208 | 423 | 866 | 79 | 2,244 | 27 |
| 2022 | 5,741 | 25 | 859 | 1,265 | 1,493 | 11 | 2,252 | 52 |
| 2021 | 7,869 | 303 | 1,468 | 1,687 | 1,295 | 23 | 3,434 | 57 |
| 2020 | 7,464 | 175 | 1,702 | 1,992 | 1,325 | 49 | 2,504 | 59 |
| 2019 | 7,191 | 72 | 1,409 | 1,855 | 1,144 | 216 | 2,726 | 65 |
| 2018 | 5,360 | 50 | 823 | 1,226 | 1,016 | 66 | 2,334 | 94 |
| 2017 | 4,606 | 47 | 688 | 1,020 | 747 | 89 | 2,173 | 62 |
| 2016 | 5,076 | 31 | 751 | 1,131 | 832 | 104 | 2,387 | 82 |
| 2015 | 4,826 | 8 | 170 | 436 | 201 | 69 | 530 | 61 |
| 2014 | 5,548 | 99 | ||||||
| 2013 | 6,025 | 486 | ||||||
| 2012 | 6,296 | 145 | ||||||
| 2011 | 5,444 | 176 | ||||||
| 2010 | 6,456 | 179 | ||||||
| 2009 | 7,632 | 780 | ||||||
| 2008 | 8,294 | 524 | ||||||
| 2007 | 4,135 | 636 | ||||||
| 2006 | 1,092 | 549 | ||||||
| 2005 | 148 | 104 | ||||||
| 2004 | 3 | |||||||
| 2003 | ||||||||
| 2002 | ||||||||
| 2001 |