I'm trying to figure out why the Sequoia fund has differing charts on different websites for the same time-frame.

On their website it looks like this: http://www.sequoiafund.com/fp-investment-comparison.htm

but on msn money's website it looks like this: MSN Money Link
why?

specifically, why on msn.com it shows that the fund has done the same as the market since 1970 but on their website it shows them doing MUCH better than the market?