The quoted numbers were estimates from roughly the 2012 time frame.  I don't know the exact source that was used by a lot of people quoted an old CBC article that had some really bad estimates.

The latest and greatest audited results, just updated this morning, straight from the horse's mouth:

Table 1, Page 9
http://www.fin.gc.ca/frt-trf/2017/frt-trf-17-eng.pdf