That's basically the issue.
First, section 8 of the Constitution Act,1867 mentions the responsibility of the federal and provincial governments to hold a census on a regular basis. I have Mr. Power's document. In terms of co-operative federalism and the fact that the provinces have that responsibility, we still need raw data through the federal census.
In response to Mrs. Boucher's question, all the provinces—Ontario at least—use raw census data to establish the numbers. The provinces ask questions and, with the raw data, they can determine how to use that data. However, the raw data have to be accurate. That's the purpose of the census questions.