The approach we've taken to get a good understanding of the mental health burden in the Canadian Armed Forces is that we had a very significant survey done through Statistics Canada in which members of the Canadian Armed Forces were interviewed to identify those who had symptom complexes that were representative of mental illness. Through that, we were able to see that the 12-month prevalence of post-traumatic stress disorder had changed from 2.7% in 2002 to 5.4% in 2013. We did see, though, that there was no real change in the percentage of Canadian Armed Forces personnel suffering from depression—which is still our number one cause of mental illness in the military—which was around 8% in 2002 and still the same in 2013. I don't get an annual report on the statistics.
On November 3rd, 2016. See this statement in context.