Frequencies for first 10,000 rows of drugbenefittype variable in ma2017 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,494       24.94       24.94
      Basic |      1,733       17.33       42.27
   Enhanced |      5,773       57.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org ,