Frequencies for first 10,000 rows of typeofextracoverageinthega variable in planreporta_to_m2013 dataset :

Type of Extra Coverage in the |
                          Gap |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                              |      7,172       71.72       71.72
                 All Generics |        190        1.90       73.62
  All Generics and All Brands |         18        0.18       73.80
  All Generics and Few Brands |        194        1.94       75.74
 All Generics and Some Brands |          2        0.02       75.76
                 Few Generics |        126        1.26       77.02
  Few Generics and Few Brands |        989        9.89       86.91
                Many Generics |        614        6.14       93.05
 Many Generics and Few Brands |         91        0.91       93.96
Many Generics and Some Brands |         22        0.22       94.18
                Some Generics |        492        4.92       99.10
 Some Generics and Few Brands |         53        0.53       99.63
Some Generics and Some Brands |         37        0.37      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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