From the Akismet stats page

524,143,055 spams caught so far

1,606,961 so far today

94% of all comments are spam

The spam log on the Sandaig blogs tells me our good comments (ham according to Akismet) to spam ratio is a lot poorer than average, we seem to get 100s of spam comments every day. The trend in the Akismet graph is pretty depressing, the fact that so little spam actually gets through to protected blogs is not.