References
- Bureau of Economic Analysis, US Department of Commerce, Per Capita Personal Income for all US States, 1995–1999, cber.bus.utk.edu/bea/pci99st.txt.
- Bureau of Labor Statistics Data, US Department of Labor (1999) Employment Statistics, 146.142.4.24/cgi-bin/dsrv.
- Bureau of Labor Statistics Data, US Department of Labor (1999) Employer Firm Births by State, sba.gov/ADVO/stats.
- United States Department of Commerce (1999) New Privately Owned Housing Units Authorized Unadjusted Units for Regions, Divisions, and States, census.gov/const/C40/Table2/tb2u1999.txt.
- United States Department of Commerce (1999) State Population Estimates, census.gov/population/estimates/state/st-99-3.txt, Dec. 29, 1999.