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

  Services: |
Therapeutic |
  Radiology |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |        883        8.83       94.43
          1 |        308        3.08       97.51
          2 |        150        1.50       99.01
          3 |         99        0.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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