[9]  The numbers for 1975, 1980, and 1985 are estimates, the numbers since 1990 are projections of the 1987 census. The results up to 1985 are  residents of living quarters and since 1987 are residents of the primary domicile.
The figures for 1975, 1980, and 1985 are estimates, while the numbers since 1990 are projections based on the 1987 census. The data up to 1985 is about residents living in their homes, whereas from 1987 onwards it's about residents residing at their primary residences.