Frequencies for additionaldrugcoverageoffered variable in pdp2018 dataset :

 Additional |
       Drug |
   Coverage |
 Offered in |
    the Gap |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.08        0.08
         No |        776       65.43       65.51
        Yes |        409       34.49      100.00
------------+-----------------------------------
      Total |      1,186      100.00

by Jean Roth , jroth@nber.org , 10 Sep 2018