Frequencies for first 10,000 rows of typeofadditionalcoverageoff variable in ma2010 dataset :

  Type of Additional Coverage |
           Offered in the Gap |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                              |      7,794       77.94       77.94
                 All Generics |          5        0.05       77.99
  All Generics and Few Brands |          3        0.03       78.02
                 Few Generics |         20        0.20       78.22
  Few Generics and Few Brands |        222        2.22       80.44
     Few Generics, Few Brands |        198        1.98       82.42
                Many Generics |        190        1.90       84.32
 Many Generics and Few Brands |          4        0.04       84.36
    Many Generics, Few Brands |          1        0.01       84.37
              No Gap Coverage |      1,064       10.64       95.01
                         None |        316        3.16       98.17
                Some Generics |        183        1.83      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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