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

  Services: |
 Orthopedic |
    Surgery |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |      1,027       10.27       95.96
          1 |        304        3.04       99.00
          2 |         34        0.34       99.34
          3 |         66        0.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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