Frequencies for first 10,000 rows of f_ab_inj variable in natlterr2010 dataset :

      Birth |
     Injury |
(ab_binj) R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,662       46.62       46.62
          1 |      5,338       53.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015