Frequencies for first 10,000 rows of drugbenefittype variable in ma2018 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,572       25.72       25.72
      Basic |        933        9.33       35.05
   Enhanced |      6,495       64.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org ,