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

   Is visit |
 related to |
injury/pois |
oning/adver |
 se effect? |
      Broad |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        358        3.58        3.58
    Unknown |        165        1.65        5.23
         No |      8,469       84.69       89.92
        Yes |      1,008       10.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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