Analyzing Subversion Usage Log

We want to start analyzing the usage of our various Subversion repos, which I know are kept in our Apache logs. The problem is that I don't know of any tools for this. If, for example, I want to get a listing for each repository "There were X1 checks and Y1 checks on day W1, X2 and Y2 checks on day W2 ..." is there a tool that will clear the Apache logs and give me these metrics? Either my google-fu seems weak in this area, or there really isn't anything there.

I assume this is something that most server log analysis tools like AWstats and Webalyzer won't do.