That's a good point, obviously India and China have vastly larger populations and hence produce more STEM graduates than the other countries. If population and

That's a good point, obviously India and China have vastly larger populations and hence produce more STEM graduates than the other countries. If population and the number of graduates were the key factor, we would observe a similar trend across other visa types, in particular academic visas. This is not the case, it seems: https://apps.axibase.com/chartlab/6042ea50/2/ https://apps.axibase.com/chartlab/6042ea50/2/ - J-1 https://apps.axibase.com/chartlab/6042ea50/3/ https://apps.axibase.com/chartlab/6042ea50/3/ - F-1 J-1 is particularly interesting, where India is growing but lagging behind other countries.