Frequencies for first 10,000 rows of a_perinj variable in per_aux dataset :

     Person |
Injury Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,085       40.85       40.85
          6 |      5,915       59.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016