Frequencies for first 10,000 rows of extracoverageingap variable in ma2012 dataset :

      Extra |
Coverage in |
        Gap |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,711       87.11       87.11
          Y |      1,289       12.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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