Frequencies for first 10,000 rows of drugbenefittype variable in planreport2010 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,652       66.52       66.52
      Basic |      1,243       12.43       78.95
   Enhanced |      2,105       21.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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