Frequencies for first 10,000 rows of typeofadditionalcoverageoff variable in ma2008 dataset :

  Type of Additional Coverage |
           Offered in the Gap |      Freq.     Percent        Cum.
------------------------------+-----------------------------------
                              |      8,865       88.65       88.65
  Few Generics and Few Brands |         91        0.91       89.56
     Few Generics, Few Brands |         89        0.89       90.45
                Many Generics |        145        1.45       91.90
              No Gap Coverage |        576        5.76       97.66
                         None |        172        1.72       99.38
                Some Generics |         62        0.62      100.00
------------------------------+-----------------------------------
                        Total |     10,000      100.00

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