Frequencies for first 10,000 rows of prov0455 variable in posclia2000 dataset :

   prov0455 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,606       76.06       76.06
          1 |      2,390       23.90       99.96
          2 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016