Frequencies for first 10,000 rows of op_srvc_cd variable in pos2015 dataset :

  Services: |
 Outpatient |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,580       85.80       85.80
          0 |        331        3.31       89.11
          1 |        929        9.29       98.40
          2 |         42        0.42       98.82
          3 |        118        1.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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