Frequencies for first 10,000 rows of drugbenefittype variable in planreport2009 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,531       65.31       65.31
      Basic |      1,226       12.26       77.57
   Enhanced |      2,243       22.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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