Frequencies for first 10,000 rows of prov0455 variable in posclia1999 dataset :

   prov0455 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,575       75.75       75.75
          1 |      2,422       24.22       99.97
          2 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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