Frequencies for benefittype variable in pdp2008 dataset :

    Benefit |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
      Basic |      1,359       48.96       48.96
   Enhanced |      1,417       51.04      100.00
------------+-----------------------------------
      Total |      2,776      100.00

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