Well, I can give you some data on the subject. The data are from the report of the Senate Standing Committee on Official Languages. It's a very interesting report, published in the summer of 2015, concerning the immersion clientele. The report contained some very interesting recommendations.
One of the details I remember from the report is that there are 1.7 million students enrolled in anglophone schools, and more than 380,000 students enrolled in immersion programs. Based on 2014-2015 statistics, 4,000 immersion students attended our 21 colleges and universities.