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

  Services: |
    Nuclear |
   Medicine |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,569       85.69       85.69
          0 |        565        5.65       91.34
          1 |        566        5.66       97.00
          2 |        231        2.31       99.31
          3 |         69        0.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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