the ATP made a mistake with the rankings that were published earlier today: They've missed out all the results of the Fergana Challenger (May 21 this year).
This means that Dupuis, Chekov, Slanar, Wang, Rosol, Brands etc are all shown with too few points and the wrong rankings.
The ATP have now corrected this error, but it looks like the rankings you were sent/downloaded were the pre- correction version.
Hopefully you can find a copy of the new version.
ah, good catch. And yes, the pdf files are updated so I have revised the rankings. I can also get rid of that Antony Dupuis remark about having his points stripped. So this was the reason.