Frequencies for first 10,000 rows of ab_binj variable in natlterr2007 dataset :

      Birth |
 Injury RFP |
634=f_ab_in |
        j R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,163       61.63       61.63
          N |      3,821       38.21       99.84
          U |          1        0.01       99.85
          Y |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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