Stats Canada has data on # of housing units and population. As I recall we discussed this a while back for the GTA, and # of units had exceeded population growth by a fair margin, but when you adjust for size of housing units, then units were ahead of population growth by a smaller margin.
For housing starts, if you google "Canada housing starts" that will answer half of the equation (ie approx 200k per year). The other half is that we have approx 1 housing unit per 3 people in the country (ie 12m units), and if you google "canada rate of population growth" you'll see that Stats Canada quotes an average rate of growth of 1% over the past 10 years
http://www12.statcan.gc.ca/census-recensement/2011/as-sa/98-310-x/98-310-x2011003_1-eng.cfm
So it would appear we've been building units at approx 1.6x the rate of population growth over the past decade. Ie 200k/12m = 1.67% = approx 1.6 x 1% population growth. But presuming those units may be smaller on average (ie like many of the GTA condos), perhaps its been more like 1.4x population growth?