Frequencies for first 10,000 rows of rdlgy_srvc_cd variable in pos2011 dataset :

   Service: |
  Radiology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,621       96.21       96.21
          1 |         79        0.79       97.00
          2 |        285        2.85       99.85
          3 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019