We gather information from different sources. Perhaps the most important study we've done is the 2013 Canadian Forces mental health survey. The data was collected on our behalf by Stats Canada, and that actually showed a lot of important information, including the rates of several of the more prevalent mental illnesses like depression, PTSD, and so on.
That has really given us a very strong foundation for understanding what types of illnesses we have. There has been a fairly significant body of work going on to analyze this data in all sorts of ways, for example, understanding the rates of adverse childhood experiences in Canadian Forces members if we're looking at thoughts of suicide, suicidal ideation, etc.
We have published a number of papers and are working on more from that particular data set. We've also done chart reviews from which we have a good understanding of the impact of mental illness on people who have deployed in Afghanistan. We also examine the data from our enhanced post-deployment screening.
Those give some examples of some of the research we've done to understand this issue in our population.