Frequencies for first 10,000 rows of ot_srvc_cd variable in pos1996 dataset :

       srv: |
occupationa |
  l therapy |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,911       69.11       69.11
          0 |        789        7.89       77.00
          1 |        910        9.10       86.10
          2 |      1,141       11.41       97.51
          3 |        249        2.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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