Language Used Most Often at Work (8), Language Used Regularly at Work (9), Mother Tongue (8), Occupation - 2001 National Occupational Classification for Statistics (11A) and Sex (3) for Population 15 Years and Over Who Worked Since 2000, for Canada, Provinces, Territories, Toronto, Montréal, Vancouver and Ottawa - Hull (Quebec Part and Ontario Part) Census Metropolitan Areas, 2001 Census - 20% Sample Data - Dataset