U. S. Census Bureau, “State and County QuickFacts. Data Derived from Population Estimates, Census of Population and Housing, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits, Consolidated Federal Funds Report,” 2000. http://quickfacts.census.gov/qfd/states/47000.html

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