Interurban migration shows the movement of people between the census metropolitan area (CMA) and other cities within the province. If the figure is positive, it refers to people moving from other cities within the province to settle in the metropolis. A negative figure indicates the movement of people who have left the CMA to settle in other cities within the province.
The data for the 5 census metropolitan areas (CMA) is provided quarterly by the Conference Board of Canada in annualized form. Annualizing quarterly data (multiplying it by four) makes it possible to compare quarterly performance with the annual result.
The data is also deseasonalized, eliminating the impact of seasonal variations and making it possible to compare data throughout the year.