References/Notes/Attributions:
Source
Table 14.1 in Greene (1993)
References
Cribari-Neto F. (2004), Asymptotic Inference Under Heteroskedasticity of Unknown Form, Computational Statistics \& Data Analysis, 45, 215-233.
Greene W.H. (1993), Econometric Analysis, 2nd edition. Macmillan Publishing Company, New York.
US Department of Commerce (1979), Statistical Abstract of the United States. US Government Printing Office, Washington, DC.