| Date | Protections | ≤ 1 day | ≤ 1 week | ≤ 1 month | ≤ 1 year | > 1 year | Infinity | Unprotections |
|---|---|---|---|---|---|---|---|---|
| 2024 | 268 | 6 | 13 | 50 | 39 | 172 | 192 | |
| 2023 | 864 | 4 | 29 | 44 | 34 | 35 | 747 | 11 |
| 2022 | 503 | 7 | 25 | 34 | 60 | 400 | 4 | |
| 2021 | 222 | 9 | 21 | 25 | 131 | 41 | 4 | |
| 2020 | 59 | 1 | 1 | 13 | 4 | 1 | 39 | 1 |
| 2019 | 71 | 4 | 4 | 4 | 4 | 55 | ||
| 2018 | 91 | 1 | 7 | 46 | 14 | 25 | 1 | |
| 2017 | 110 | 2 | 11 | 10 | 27 | 66 | 2 | |
| 2016 | 172 | 1 | 19 | 43 | 11 | 103 | 2 | |
| 2015 | 38 | 1 | 3 | |||||
| 2014 | 46 | 2 | ||||||
| 2013 | 65 | 2 | ||||||
| 2012 | 36 | 5 | ||||||
| 2011 | 36 | 1 | ||||||
| 2010 | 39 | |||||||
| 2009 | 32 | 2 | ||||||
| 2008 | 39 | 1 | ||||||
| 2007 | 49 | 1 | ||||||
| 2006 | 5 | |||||||
| 2005 | 7 | 6 | ||||||
| 2004 | ||||||||
| 2003 | ||||||||
| 2002 |