Mother Tongue (8), Industry - North American Industry Classification System (NAICS) 2012 (122), Knowledge of Official Languages (5), Highest Certificate, Diploma or Degree (15) and Immigrant Status and Admission Category (12) for the Population Aged 15 Years and Over Who Worked Since 2015, in Private Households of Canada, Provinces and Territories, Census Metropolitan Areas and Census Agglomerations, 2016 Census - 25% Sample Data - Supporting Document