Frequencies for first 10,000 rows of prov2270 variable in pos2001 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,865       68.65       68.65
          0 |        649        6.49       75.14
          1 |        947        9.47       84.61
          2 |      1,248       12.48       97.09
          3 |        291        2.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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