Frequencies for first 10,000 rows of ab_binj variable in natlterr2011 dataset :

      Birth |
 Injury RFP |
634=f_ab_in |
        j R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,536       25.36       25.36
          N |      6,348       63.48       88.84
          U |      1,094       10.94       99.78
          Y |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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