Introduction: The “aging” level of the population is often represented by the dependency ratio. This is the number of people in two groups – those over 65 and those under 15 – divided by the number of those between the ages of 15 and 65. Below, the Canadian dependency ratio is modeled out to the year 2100 based on different assumptions for fertility and immigration.
Fertility: Total number of children per woman. 2.1 is replacement level.
Immigration: Net immigration as a percentage of the population. Currently in Canada, immigration is running at the 0.8% to 1.0% level.