The latest existing-home sales report from the National Association of Realtors shows the prices in the West region is down by 7% from July of 2010 to July of 2011. The number of transactions, however, is up by 12% for the same period according to NAR. The West region which includes Colorado lags the nation. Click here for the analysis and graphs by the Colorado Department of Housing. Click here for the NAR Report and here for the Case Shiller Data.