Any MLS member can look that up for you. What I might suggest is to talk to a few agents, ask them to bring a laptop....Starbucks is my favorite office :)....and have them show you the stats directly from the MLS itself.
Since you are doing your homework, you can also check for any complaints by looking up the license with the California Department of Real Estate. Be sure and ask for references and call....ask for a transaction that was difficult to complete...either with financing, or appraisal, or difficult agents, something which demonstrates the work ethic and creativity of the agent. You need to make sure that you have an agent who won't disappear when the going gets rough and has the experience to know how to handle things.
I work and live in Orange County, I'd love to buy you a Latte and show you the closed sales I've done, if you are still interviewing Realtors. I would invite you to read some of my blog posts and answers to questions here on Trulia and/or my website....see if you think we might be a fit.