This report provides data on clients served and services provided based on California's Client and Service Information (CSI) data for fiscal years 2011 and 2012. It includes the number of unique clients served annually by factors such as region, county, age, gender, race/ethnicity, primary language, diagnosis, and special population. It also includes data on services provided by type of service and average annual units of service per client. The report finds variations across regions and identifies areas in the CSI data that need improvement to ensure accurate oversight and evaluation.