Demographic surveys Population 30 Statistics 9 Census undercounts 5 Government publications 5 Methodology 5 Constitutional law 4 Curricula 4 Economic conditions 4 High school graduates 4 High schools 4 Housing 4 Minorities 4 Noncitizens 4 Statistical methods 4 Student records 4 Unemployment 4 Business 3 International cooperation 3 Manufactures 3 Officials and employees 3 Planning 3 Printing 3 Research 3 African Americans 2 Apportionment 2 Automation 2 Budget 2 Census, 1990 2 City planning 2