Frequencies for first 10,000 rows of eniflag_11 variable in linkco1991us_num dataset :

  Nature of |
Injury Flag |
         11 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        0.01        0.01
          . |      9,999       99.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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