Frequencies for first 10,000 rows of drugbenefittype variable in ma2016 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,553       25.53       25.53
      Basic |      2,274       22.74       48.27
   Enhanced |      5,173       51.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org ,