Frequencies for first 10,000 rows of op_srvc_cd variable in pos2014 dataset :

  Services: |
 Outpatient |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,592       85.92       85.92
          0 |        322        3.22       89.14
          1 |        934        9.34       98.48
          2 |         46        0.46       98.94
          3 |        106        1.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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