Yes, it's silly, and of course it's too stupid to be true. But it's funny anyway.
There is the issue that the [link|http://www.washingtonpost.com/wp-dyn/articles/A12519-2005Jan15.html|charts aren't always right]. But that's not the case in the OP.
It was in Oh, Pun for a reason. :-)
Cheers,
Scott.