Households will be selected for the survey at random from a survey area that includes the Greater Toronto and Hamilton Area (GTHA), the Regional Municipalities of Niagara and Waterloo, the counties of Brant, Dufferin. Peterborough, Simcoe and Wellington, the Cities of Barrie, Brantford, Guelph, Kawartha Lakes, Orillia and Peterborough and the Town of Orangeville.