Frequencies for first 10,000 rows of op_srvc_cd variable in pos2016 dataset :

  Services: |
 Outpatient |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |        337        3.37       89.06
          1 |        932        9.32       98.38
          2 |         42        0.42       98.80
          3 |        120        1.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017