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

  Services: |
    Cardiac |
   Thoracic |
    Surgery |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |      1,148       11.48       97.17
          1 |        205        2.05       99.22
          2 |         42        0.42       99.64
          3 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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