Frequencies for first 10,000 rows of prov4195 variable in posclia1997 dataset :

   prov4195 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,477       94.77       94.77
          X |        523        5.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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