DATA7-23
    Data are cross section for 76 countries.  1976 data were compiled
    by Denise Lerner and 1989 data were compiled by Elmer Gamoning.
    See DATA4-15 and DATA7-17 for data sources.
    Y   = gini coefficient range 0
SAMPLE 1 76
READ (DATA7-23) Y gnp gdp pop  urb lit edu agr d