Frequencies for first 10,000 rows of ot_srvc_cd variable in pos1992 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,382       73.82       73.82
          0 |        821        8.21       82.03
          1 |        849        8.49       90.52
          2 |        832        8.32       98.84
          3 |        116        1.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017