Many, many pre-optometry students have analyzed these stats, and everyone comes to the same conclusion...these stats are bull****. Many people have run the numbers and compared it to the number of people actually getting 37s on the MCAT. For everyone accept with an MCAT of 32, there would have to be someone accepted with a 42 for this to average out. Someone on SDN said that about 12 people per MCAT get a 42. Only 1 tenth of test takers are canadian....so there are only 1 or 2 of us Canadians getting 42's on the MCAT. Anyhow, this number game has been played out on SDN before. Do a search for it, you should be able to find it.
Either way, don't let these numbers intimidate you. No one else believes them.