Frequencies for first 10,000 rows of ot_srvc_cd variable in pos1994 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,438       74.38       74.38
          0 |        791        7.91       82.29
          1 |        734        7.34       89.63
          2 |        858        8.58       98.21
          3 |        179        1.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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