Where do you find facts about Canada’s public relations industry?

We received an email from a university student in search of data about Canada’s public relations industry.

I’m doing a term paper for one of my university courses and need to find information on the Canadian public relations industry facts such as market trends, demographics, economic, cultural and social factors.  This information is widely available for US market, however I cannot find anything on the Canadian market.
I would appreciate if you could let me know where I could find this type of information.

Good question. I have to be honest that I don’t have good sources for this information at my fingertips.

Do you have authoritative sources of information on Canada’s public relations industry that you rely upon?