Frequencies for first 10,000 rows of intent variable in nhamcsed2012 dataset :

  Is this injury/poisoning |
              intentional? |      Freq.     Percent        Cum.
---------------------------+-----------------------------------
                     Blank |      7,521       75.21       75.21
                   Unknown |         52        0.52       75.73
       Yes, self-inflicted |         47        0.47       76.20
              Yes, assault |        148        1.48       77.68
         No, unintentional |      2,203       22.03       99.71
Questionable injury status |         29        0.29      100.00
---------------------------+-----------------------------------
                     Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016