I don't really know..... but, my friend does....
around 1 in every 166 kids have autism
actually that number has changed as of this year (2009) it is now 1 in 100 that is according to the Autism...
For the source and more detailed information concerning this subject, click on the related links section (U.S. Census Bureau) indicated below this answer box.
Over 70%. See Page 6, Table 1.
http://www.cdc.gov/nchs/data/nvsr/nvsr57/nvsr57_12.pdf
Over 70%. See Page 6, Table 1.
http://www.cdc.gov/nchs/data/nvsr/nvsr57/nvsr57_12.pdf