Frequencies for first 10,000 rows of drugbenefittype variable in planreport2011 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,734       67.34       67.34
      Basic |      1,179       11.79       79.13
   Enhanced |      2,087       20.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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