[DrScump]

"Figure 1 [0] shows California’s Department of Finance’s (DOF) estimate of domestic migration, migration between California and other states. According to the DOF, California’s domestic migration has been negative in 18 of the past 20 years."

[0] http://www.newgeography.com/content/003584-california-a-worl...

Also, see http://www.sacbee.com/site-services/databases/article3267975...