Archived page. The figures date from December 2014, and the wording reflects that time. The three charts on the original page and the linked PDF were not preserved in the archive, so only their titles remain.
Autism Explosion: California Department of Developmental Services Autism Cases, 1989-2014 (chart not preserved)
December 2014 California Dept of Developmental Services CDER case records, by county (file not preserved)
This PDF, a report that is issued quarterly, shows Regional Center developmental disability cases, statewide and by county. As of December 2014, California counts more than 75,000 DDS Autism cases.
For every one Californian with DDS-eligible Autism in 1990, there are more than 20 today: (chart not preserved)
California Autism Population, by Birth Year, DDS Cases Only (chart not preserved)