Frequencies for first 10,000 rows of firearm variable in nhamcsed1995 dataset :

   did a firearm produce the injury? |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
Not applicable (not an injury visit) |      6,315       63.15       63.15
                                 Yes |         29        0.29       63.44
                                  No |      3,656       36.56      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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