| Date | Protections | ≤ 1 day | ≤ 1 week | ≤ 1 month | ≤ 1 year | > 1 year | Infinity | Unprotections |
|---|---|---|---|---|---|---|---|---|
| 2021 | 28,616 | 20 | 118 | 358 | 356 | 3 | 27,786 | 61 |
| 2020 | 1,357 | 18 | 187 | 400 | 556 | 17 | 201 | 54 |
| 2019 | 3,965 | 31 | 190 | 382 | 413 | 91 | 2,919 | 5 |
| 2018 | 1,066 | 11 | 125 | 256 | 380 | 47 | 277 | 6 |
| 2017 | 530 | 10 | 49 | 165 | 239 | 83 | ||
| 2016 | 343 | 8 | 49 | 103 | 142 | 1 | 48 | 14 |
| 2015 | 391 | 1 | 11 | 37 | 19 | 1 | 8 | 8 |
| 2014 | 157 | 10 | ||||||
| 2013 | 413 | 20 | ||||||
| 2012 | 25 | |||||||
| 2011 | ||||||||
| 2010 | ||||||||
| 2009 | ||||||||
| 2008 | ||||||||
| 2007 | ||||||||
| 2006 | ||||||||
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| 2004 |