Frequencies for first 10,000 rows of cause3 variable in namcs2014 dataset :

   Cause of |
    injury, |
 poisoning, |
 or adverse |
effect - #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,974       99.74       99.74
       0000 |         14        0.14       99.88
       0011 |          1        0.01       99.89
       0032 |          1        0.01       99.90
       0050 |          1        0.01       99.91
       0073 |          1        0.01       99.92
       0161 |          1        0.01       99.93
       8494 |          3        0.03       99.96
       8495 |          2        0.02       99.98
       8496 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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