glen is probably referring to the ratio of the number of successful applicants to the total number of applicants - which is about 1% ( about a decade and half ago, maybe even less now).

I don't know whether it makes any sense to compare the calibre of students coming from colleges in different countries with vastly different cultures in the absence of results from common tests.

However, these people are definitely among the best from a populous country where education has a status closer to religion and is also a ticket to earn legal income disproportionate to efforts expended.