Wikipedia:Vandalism statistics
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Date | Articles in Sample | Edits in Sample | Vandalism Events | Median Duration (min) | Mean Duration (hours) | Probability of Encountering Vandalism (%) |
---|---|---|---|---|---|---|
2001-01 | 1 | 1 | 0 | 0 | 0 | 0 |
2001-02 | 7 | 23 | 0 | 0 | 0 | 0 |
2001-03 | 10 | 3 | 0 | 0 | 0 | 0 |
2001-04 | 13 | 4 | 0 | 0 | 0 | 0 |
2001-05 | 24 | 17 | 0 | 0 | 0 | 0 |
2001-06 | 28 | 5 | 0 | 0 | 0 | 0 |
2001-07 | 33 | 9 | 0 | 0 | 0 | 0 |
2001-08 | 42 | 10 | 0 | 0 | 0 | 0 |
2001-09 | 69 | 38 | 0 | 0 | 0 | 0 |
2001-10 | 100 | 41 | 0 | 0 | 0 | 0 |
2001-11 | 121 | 66 | 0 | 0 | 0 | 0 |
2001-12 | 139 | 146 | 0 | 0 | 0 | 0 |
2002-01 | 151 | 81 | 0 | 0 | 0 | 0 |
2002-02 | 253 | 330 | 0 | 0 | 0 | 0 |
2002-03 | 273 | 152 | 0 | 0 | 0 | 0 |
2002-04 | 302 | 133 | 0 | 0 | 0 | 0 |
2002-05 | 313 | 131 | 0 | 0 | 0 | 0 |
2002-06 | 335 | 168 | 0 | 0 | 0 | 0 |
2002-07 | 357 | 238 | 0 | 0 | 0 | 0 |
2002-08 | 406 | 402 | 1 | 0 | 0 | 7.61225E-05 |
2002-09 | 510 | 513 | 1 | 0 | 0 | 0.000264446 |
2002-10 | 800 | 724 | 4 | 0 | 0 | 0.005788997 |
2002-11 | 852 | 432 | 3 | 119.2 | 6.6 | 3.99366E-05 |
2002-12 | 890 | 576 | 4 | 6 | 0 | 8.84834E-05 |
2003-01 | 950 | 551 | 6 | 3.8 | 0.1 | 0.000744392 |
2003-02 | 1007 | 480 | 5 | 11.4 | 0.8 | 0.003209279 |
2003-03 | 1066 | 455 | 5 | 13.4 | 4.2 | 0.000912424 |
2003-04 | 1124 | 648 | 11 | 10.8 | 1.4 | 0.02431428 |
2003-05 | 1206 | 613 | 5 | 10.2 | 17.4 | 0.000338967 |
2003-06 | 1283 | 899 | 66 | 30.1 | 0.5 | 0.003634659 |
2003-07 | 1385 | 814 | 18 | 1.5 | 0.4 | 0.065808149 |
2003-08 | 1488 | 819 | 10 | 11.4 | 147.6 | 0.108014818 |
2003-09 | 1579 | 787 | 14 | 3.8 | 7.2 | 0.071283942 |
2003-10 | 1655 | 879 | 24 | 12 | 4.5 | 0.06884134 |
2003-11 | 1776 | 1116 | 14 | 7.1 | 113.2 | 0.058729169 |
2003-12 | 1934 | 1326 | 19 | 2.2 | 0.3 | 0.067546999 |
2004-01 | 2053 | 1283 | 27 | 23.9 | 10.2 | 0.060638434 |
2004-02 | 2230 | 1767 | 46 | 27.4 | 23.6 | 0.043919441 |
2004-03 | 2464 | 2178 | 45 | 10.4 | 22.3 | 0.064595744 |
2004-04 | 2574 | 2169 | 46 | 20.3 | 44.6 | 0.095004833 |
2004-05 | 2710 | 2231 | 49 | 17.2 | 37.4 | 0.101707972 |
2004-06 | 2870 | 3082 | 54 | 27.6 | 15.3 | 0.07227921 |
2004-07 | 3022 | 2921 | 57 | 27.6 | 32.8 | 0.138624926 |
2004-08 | 3185 | 3218 | 55 | 203.7 | 262.2 | 0.116166626 |
2004-09 | 3387 | 3661 | 83 | 16.1 | 21.3 | 0.122769835 |
2004-10 | 3589 | 4272 | 111 | 70.4 | 77.9 | 0.157590806 |
2004-11 | 3816 | 5415 | 164 | 21.3 | 9.4 | 0.206198471 |
2004-12 | 4012 | 4813 | 196 | 27.1 | 58.3 | 0.308721619 |
2005-01 | 4186 | 4833 | 214 | 42.1 | 93.9 | 0.428094153 |
2005-02 | 4354 | 4510 | 246 | 51.6 | 55.5 | 0.601063053 |
2005-03 | 4581 | 5322 | 219 | 13.8 | 172.9 | 0.318791799 |
2005-04 | 4853 | 10281 | 716 | 20.2 | 28.7 | 0.257650617 |
2005-05 | 5187 | 7840 | 395 | 4.3 | 4.9 | 0.238277443 |
2005-06 | 5501 | 8300 | 361 | 14.4 | 16.6 | 0.235709027 |
2005-07 | 5924 | 10586 | 467 | 16.5 | 24.8 | 0.220208084 |
2005-08 | 6299 | 11131 | 582 | 10.3 | 17.5 | 0.226282854 |
2005-09 | 6633 | 10189 | 470 | 11.3 | 9.8 | 0.159415746 |
2005-10 | 7074 | 12266 | 791 | 18.7 | 23.9 | 0.235496075 |
2005-11 | 7511 | 13449 | 904 | 16.1 | 12.2 | 0.221396819 |
2005-12 | 7981 | 17894 | 1160 | 17.4 | 10.2 | 0.201791556 |
2006-01 | 8472 | 18774 | 1197 | 5.8 | 15.6 | 0.217764341 |
2006-02 | 8905 | 18487 | 1251 | 6.2 | 8.9 | 0.187342879 |
2006-03 | 9398 | 22423 | 1551 | 6.9 | 11.3 | 0.216728094 |
2006-04 | 9873 | 20688 | 1415 | 5.8 | 7.7 | 0.261696764 |
2006-05 | 10390 | 22682 | 1631 | 10.4 | 13.8 | 0.303300688 |
2006-06 | 10893 | 23911 | 1444 | 6.5 | 14.4 | 0.278161677 |
2006-07 | 11408 | 22570 | 1207 | 7.6 | 41.7 | 0.305765475 |
2006-08 | 12034 | 26226 | 1471 | 10 | 16.6 | 0.303304677 |
2006-09 | 12585 | 25668 | 1905 | 8 | 14.1 | 0.299260644 |
2006-10 | 13140 | 26800 | 2214 | 9.2 | 22.7 | 0.286838628 |
2006-11 | 13669 | 26318 | 2090 | 6.8 | 14.7 | 0.313730514 |
2006-12 | 14134 | 27560 | 1946 | 7 | 11.5 | 0.26938775 |
2007-01 | 14657 | 31276 | 2413 | 10.8 | 18.3 | 0.280239367 |
2007-02 | 15160 | 30339 | 2724 | 7.7 | 14.3 | 0.410403438 |
2007-03 | 15666 | 34017 | 3290 | 6.7 | 11.9 | 0.343946242 |
2007-04 | 16159 | 31830 | 2883 | 5.7 | 9.7 | 0.32840654 |
2007-05 | 16608 | 32151 | 3115 | 7.3 | 14.6 | 0.368294454 |
2007-06 | 17127 | 28484 | 1894 | 5.8 | 13.2 | 0.321217652 |
2007-07 | 17719 | 29226 | 1717 | 10.2 | 20.4 | 0.335611612 |
2007-08 | 18343 | 28038 | 1732 | 19.7 | 21.3 | 0.286161226 |
2007-09 | 18822 | 28047 | 2232 | 18.9 | 27.2 | 0.327931397 |
2007-10 | 19313 | 30827 | 2928 | 11.1 | 24.6 | 0.353879593 |
2007-11 | 19931 | 29035 | 2543 | 8.2 | 14.8 | 0.395029921 |
2007-12 | 21061 | 27505 | 2216 | 8.1 | 17.6 | 0.317179148 |
2008-01 | 21514 | 29685 | 2931 | 10.3 | 19.1 | 0.303821142 |
2008-02 | 21960 | 29440 | 3022 | 3.7 | 22.6 | 0.321812224 |
2008-03 | 22654 | 33594 | 3030 | 3.3 | 19.8 | 0.348837776 |
2008-04 | 23118 | 29885 | 2889 | 5.8 | 19.6 | 0.384468175 |
2008-05 | 23678 | 29398 | 2862 | 5 | 25.7 | 0.386410561 |
2008-06 | 24096 | 27401 | 2166 | 2.7 | 21.1 | 0.316150857 |
2008-07 | 24584 | 29299 | 1997 | 3.4 | 18.6 | 0.285270158 |
2008-08 | 25133 | 29337 | 2070 | 6.5 | 19.5 | 0.280815945 |
2008-09 | 25540 | 30483 | 2732 | 6.9 | 19 | 0.291800177 |
2008-10 | 26272 | 31006 | 3006 | 4.4 | 21.6 | 0.324045666 |
2008-11 | 26653 | 28568 | 2737 | 3 | 15.7 | 0.282014817 |
2008-12 | 27189 | 28048 | 2427 | 3.6 | 22.1 | 0.274590916 |
2009-01 | 27686 | 30885 | 2910 | 5.7 | 17.1 | 0.28011248 |
2009-02 | 28235 | 28775 | 2552 | 3.2 | 17.9 | 0.248450924 |
2009-03 | 28760 | 30064 | 2911 | 5.8 | 15.4 | 0.240650004 |
2009-04 | 29222 | 27118 | 2296 | 4.6 | 16.7 | 0.239053738 |
2009-05 | 29706 | 29597 | 2299 | 6.8 | 14.3 | 0.18266976 |
2009-06 (partial month) |
29999 | 21123 | 1412 | 6.8 | 11.9 | not available |
Last six months | 167562 | 14380 | 5.2333 | 14.3883 | 0.205264731 | |
Last year | 344303 | 29349 | 4.9333 | 16.8317 | 0.2454695 | |
Last two years | 696384 | 59617 | 5.6667 | 18.8731 | 0.2867022 | |
All-time | 1333829 | 102926 | 6.6833 | 18.1883 | 0.277176825 |