Frequencies for first 10,000 rows of drugbenefittype variable in maa_to_m2009 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,511       45.11       45.11
      Basic |      1,373       13.73       58.84
   Enhanced |      4,116       41.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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