Statistics Statistical methods 18 Population 15 Commercial statistics 13 Salaries, etc 12 Social sciences 10 Bibliography 8 Mais ... Economic conditions 8 Mortality 8 Clothing trade 7 Economics 7 Education, Higher 7 History 7 Housing 7 Teachers 7 Data processing 6 Elections 6 Social conditions 6 States 6 Statistics, Medical 6 Statistics, Vital 6 African Americans 5 Cancer 5 Education 5 Finance 5 Universities and colleges 5 Census, 20th, 1980 4 Cities and towns 4 Commerce 4 Households 4 menos ...