Uhhh... what the hell is the difference between south asian and east asian? what about west asian and north asian? What about all the pairings like South-East Asian and North West asian? We haven't even touched the Z-axis yet... Space Asians cannot be grouped into any of the former categories!
Very broad and inaccurate, but it usually means:
Chinese/Korean/Japanese/Filipino != Indian/Pakistan
Really want to break it down to brass tacks:
>1 billion Chinese != >1 billion Indians
Google/Wikipedia says population of Europe, including Russia, is only 750 million. China is 1.4 and India is 1.5.