1 in 28 is pretty high. You’d expect someone to notice, even in dysfunctional Somalia.
Same pattern in Sweden.
http://www.thelocal.se/32862/20110328/
The broad masses there are pretty much impoverished peasants who never see a physician to be diagnosed.
Sweden has been busy deporting everyone who ever showed the slightest sympathy toward NOT GETTING ALONG WITH OTHERS for well over 4 centuries.
I presume the incidence of autism here among Swedish descendants is greater than the incidence of autism there!
BTW, you'll probably find an inverse relationship when it comes to empathy. Be an interesting test.