Frequencies for first 10,000 rows of prov4200 variable in posclia2000 dataset :

   prov4200 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,995       99.95       99.95
          X |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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