I should also add that census data is not always accurate. Let me give you an example. The question is not whether you have studied French, but rather, whether you speak French. Someone who may have lived in Quebec for two years and has lost the use of his language will say that he does not speak French. Automatically we lose a rights holder. There are all kinds of inaccuracies like that in the census data. We must exercise caution in that regard.
On February 9th, 2011. See this statement in context.