Some geographies have been combined together for certain indicators and time periods because of how the data is reported by the source. This usually occurs due to small population sizes in some regions or for other statistical purposes (e.g., unreliable data in smaller geographies). This is the case in certain time periods for the Atlantic provinces, Sherbrooke-Trois-Rivières, Greater Sudbury-Thunder Bay, Regina-Saskatoon, Kelowna-Abbotsford, Moncton-Saint John, Brantford-Guelph-Barrie, as well as Kingston-Peterborough.