Frequencies for benefittype variable in pdp2015 dataset :

    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.07        0.07
      Basic |        631       43.46       43.53
   Enhanced |        820       56.47      100.00
------------+-----------------------------------
      Total |      1,452      100.00

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