Frequencies for first 10,000 rows of intent variable in nhamcsed2009 dataset :

intentional |
     ity of |
     injury |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |        360        3.60        3.60
         -7 |      6,658       66.58       70.18
          1 |        105        1.05       71.23
          2 |        155        1.55       72.78
          3 |      2,722       27.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016