I feel like "Asians" is too broad a grouping. I think if we split "Asians" into Indians and the Chinese the stats would be a lot more illuminating. Microsoft, for instance, seems to have a much larger percentage of Indian workers than Google does. It could be because Microsoft hires a ton more contractors (some of which convert to FTE) or it could be something else. In any case, much finer grained stats are needed to gain better understanding.