Frequencies for first 10,000 rows of eniflag_1 variable in linkco1991us_num dataset :

  Nature of |
Injury Flag |
          1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,687       96.87       96.87
          1 |        313        3.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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