There are no stats published, so this is all anecdotal, but it's generally suspected that they operate on some kind of quota basis. The Chinese quota is large

There are no stats published, so this is all anecdotal, but it's generally suspected that they operate on some kind of quota basis. The Chinese quota is large (but no longer infinite, esp for mainland Chinese), the Indian/Other quota is small, and the Malay/Muslim quota is nearly zero.