Frequencies for first 10,000 rows of intent variable in namcs2013 dataset :

  Is this injury/poisoning |
              intentional? |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
                     Blank |      9,396       93.96       93.96
             Unintentional |        383        3.83       97.79
               Intentional |         33        0.33       98.12
Questionable injury status |        188        1.88      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017