Data collection is currently in the final stages for Canada's second national mental health survey?
The first survey occurred in 2002 and this is a 10-year follow-up. Data from this survey will provide a fairly unique opportunity to determine whether mental health in Canada (including depression prevalence) is getting better, worse, or staying the same. Data release is expected to occur in 2013 and Statistics Canada will probably publish early results through "the daily." Details about the survey can be found here.