Frequencies for benefittype variable in pdp2010 dataset :

    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
      Basic |      1,184       49.13       49.13
   Enhanced |      1,226       50.87      100.00
------------+-----------------------------------
      Total |      2,410      100.00

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