Sacramento, CA (WorkersCompensation.com) – In the latest update to the Analysis of Changes in Indemnity Claim Frequency report, WCIRB researchers find that indemnity claim frequency increased in California by 3% from 2010 to 2014 while frequency for National Council on Compensation Insurance (NCCI) states declined by 11% over the same period. The WCIRB report reflects insurer unit statistical and aggregate financial call data submitted to the WCIRB through the third quarter of 2015, as well as other external data, in order to identify the key factors driving these recent frequency increases.