In exactly 50 hours, here are my stats from my spam filter:

4673 messages processed.
161 (3%) good.
4483 (96%) spam.
29 (1%) unsure (although I have my "unsure" level set high as all 29 were spam).

So, lets say that every 2 days, I receive 4500 e-mails and 97% of them are spam. What a wonderful world we live in.

URL: SpamBayes: Windows Platform