That 70% figure for Indians is likely due to resume fraud. The east and southeast Asian countries listed have much better educational systems than India.
I wouldn't call it fraud, but India does have different standards for a college degree. I've seen cases where their college degree was more like a vocational or trade school degree. The US would at best consider them to be associates degrees. It's complicated by the fact that many Indian degrees are from institutions equivalent to a college engineering degree. Without inspecting the actual transcript and knowing the texts used, it's nearly impossible for an American to tell.