Frequencies for first 10,000 rows of prov0455 variable in posclia2001 dataset :

   prov0455 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,679       76.79       76.79
          1 |      2,318       23.18       99.97
          2 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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