With respect to the data, I could add that it's very important to track a student as they move through the system. There are students, as the Auditor General has pointed out, who might be pushed out or drop out of school in grades 9, 10 or 11. There are also students who might not graduate in grade 12, but they might do an extra year or an extra two years and graduate.
On October 17th, 2018. See this statement in context.