From Diablo Wiki
The missing number you have noticed can easily be filled out by going back to the article you were viewing, edit the page and add it there if you know it.
The wiki is dependant on user contribution, and this is a perfect opportunity for you to give somethign back to the rest of the community!
The number should be fairly easy to edit, but if you want to help with other things, you can always check out the Help section.
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