Frequencies for first 10,000 rows of drugbenefittype variable in planreport2012 dataset :

       Drug |
    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,766       67.66       67.66
      Basic |      1,073       10.73       78.39
   Enhanced |      2,161       21.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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