Frequencies for first 10,000 rows of op_srgry_unit_srvc_cd variable in pos2018 dataset :

  Services: |
 Outpatient |
    Surgery |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |        626        6.26       91.86
          1 |        690        6.90       98.76
          2 |         39        0.39       99.15
          3 |         85        0.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019