In the 2006 or 2011 Census, we are able to ask where they earned their highest degree. Some say it was in Canada. Then we ask them how long they have been in Canada, and they answer three years, for example. That at least enables us to obtain information indirectly on the number of people who have earned that degree. Those who earned it outside Canada—
On April 27th, 2010. See this statement in context.