Frequencies for first 10,000 rows of typeofextracoverageinthega variable in planreport2013 dataset :

Type of Extra Coverage in the |
                          Gap |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                              |      8,827       88.27       88.27
  All Generics and Few Brands |         20        0.20       88.47
     All Generics, Few Brands |          2        0.02       88.49
                   Few Brands |          5        0.05       88.54
                 Few Generics |        116        1.16       89.70
  Few Generics and Few Brands |        241        2.41       92.11
     Few Generics, Few Brands |        196        1.96       94.07
                Many Generics |        100        1.00       95.07
 Many Generics and Few Brands |          1        0.01       95.08
Many Generics and Some Brands |          6        0.06       95.14
    Many Generics, Few Brands |          7        0.07       95.21
   Many Generics, Some Brands |          9        0.09       95.30
                Some Generics |        440        4.40       99.70
 Some Generics and Few Brands |          1        0.01       99.71
Some Generics and Some Brands |         12        0.12       99.83
    Some Generics, Few Brands |          7        0.07       99.90
   Some Generics, Some Brands |         10        0.10      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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