Frequencies for first 10,000 rows of drugbenefittype variable in ma2014 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,513       55.13       55.13
      Basic |      1,262       12.62       67.75
   Enhanced |      3,225       32.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016