Frequencies for additionaldrugcoverageoffered variable in pdp2017 dataset :

 Additional |
       Drug |
   Coverage |
 Offered in |
    the Gap |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.10        0.10
         No |        770       74.76       74.85
        Yes |        259       25.15      100.00
------------+-----------------------------------
      Total |      1,030      100.00

by Jean Roth , jroth@nber.org , 6 Dec 2016