DATA2-3:  Annual data for the U.S. on unemployment and inflation
    rates and wage growth.
    Source: 1996 Economic Report of the President.
    Unemp  =  Civilian unemployment rate, Table B-38
    cpi    =  Consumer price index (1982-84 = 100), Table B-56
    infl   =  Percent change in CPI (inflation rate) calculated
              as 100*[CPI(t) - CPI(t-1)]/CPI(t-1)
    wggr   =  Percent change in average weekly earnings, in current
              dollars, Table B-43

SAMPLE 1 37
READ (DATA2-3) year unemp cpi infl wggr