1,000 out, but 3,000 new PRCs in as citizens. Good maths.
The aging population here will no doubt be replendished.
Not many Chinese actually wanna stay here. The Chinese nationals whom I know in my poly days have long gave up their blue ICs for English, Aussie and American PR. Some may have went to Canada or closer to home, HK.
My point is: these numbers are deceiving. If majority of them take blue ICs, FOC, as a stepping stone to go to other western countries, then all these money used to bring them over are going into a black hole.
Commitment is more important than money...local borns naturally feel more attached to this country than chinese nationals who was born in Shanghai. Besides Shanghai looks more attractive as a city than Singapore. The same goes for HK.