Frequencies for first 10,000 rows of eniflag_3 variable in linkco1991us_num dataset :

  Nature of |
Injury Flag |
          3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,398       43.98       43.98
          1 |        169        1.69       45.67
          . |      5,433       54.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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