Frequencies for first 10,000 rows of prov2270 variable in pos2006 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,589       55.89       55.89
          0 |      1,191       11.91       67.80
          1 |      1,351       13.51       81.31
          2 |      1,432       14.32       95.63
          3 |        437        4.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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