S.F. Citywide Market Trends for single family homes 2008 vs. 2009-have we hit bottom?

Here is the data for all of S.F. just single family homes 2008 vs. 2009 which shows median sales price is up, sales volume is up, properties under contract is up by 42%, and inventory is down by 46%. The numbers are certainly looking promising. Where do you think our market is at? Comments are welcome! Click on each chart to enlarge