Frequencies for typeofadditionaldrugcoverag variable in pdp2013 dataset :

      Type of Additional Drug |
  Coverage Offered in the Gap |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                 All Generics |         13        0.98        0.98
                 Few Generics |         48        3.61        4.59
                Many Generics |        104        7.83       12.42
 Many Generics and Few Brands |          6        0.45       12.88
Many Generics and Some Brands |         63        4.74       17.62
              No Gap Coverage |        898       67.62       85.24
                Some Generics |         52        3.92       89.16
 Some Generics and Few Brands |          1        0.08       89.23
Some Generics and Some Brands |        143       10.77      100.00
------------------------------+-----------------------------------
                        Total |      1,328      100.00

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