Frequencies for first 10,000 rows of prov2270 variable in pos1993 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,454       74.54       74.54
          0 |        791        7.91       82.45
          1 |        779        7.79       90.24
          2 |        845        8.45       98.69
          3 |        131        1.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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