I am not sure about China, but Japanese people are closer to the spectrum. I can also tell you that Jamaicans are farthest away from the spectrum. With a general lack on interest in scientific subjects and a tenancy to be religious. Also, I have never seen a black aspie woman,(;_・)
There is a strong feminine gene in both Asian men and woman. They are even on average shorter then the average non-Asian.
Afro-American/ Caribbean have a high masculine gene. When I was at Salsa, there was three black girls, they had serious arms on them, they was unrelated and they didn’t pump iron. This scenario would be rare among Asian woman, unless they was Olympic athletes or enthusiasts. Even I am taller and more masculine looking then your average white Alpha Male. O(≧∇≦)O
I have gut feeling they are not lovers.

I have seen several black Aspie woman. A few of them are in the Harry Potter community and one is on You Tube. I believe that a vast majority of perceived differences in people are cultural, not biological. You also have to understand that most of us are coming from a biased perspective of a western country. The Asians you have the most experience with are more affluent, achievement motivated, and have a passion for learning. They will tend to give off that nerdy Asian vibe. The ones leaving their country for the west are the smartest Asians who will of course be "nerdy" in ways.