I'm just saying that we must be careful citing CSDM numbers because they represent a special situation. The CSDM have a lot of first generation immigrants, poor students, students with learning disabilities, etc. The middle class students are in good schools in the suburbs or in private schools.
The CSDM in Montreal has such a bad reputation that if you're not accepted in a specialized program (let say, international baccalaureate), you go to a private school if you can afford it (4k$/year). And don't let me start about union rules for new teachers...
On the other hand, if you're a special ed teacher, CSDM is hiring like crazy. Not so much for math, social science, french, English teachers though.