Frequencies for m_harm variable in vehicle dataset :

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         17        3.60        3.60
          2 |          3        0.64        4.24
          5 |          9        1.91        6.14
          7 |          4        0.85        6.99
          8 |        106       22.46       29.45
          9 |         15        3.18       32.63
         12 |        206       43.64       76.27
         14 |         12        2.54       78.81
         15 |          6        1.27       80.08
         25 |         13        2.75       82.84
         30 |         27        5.72       88.56
         35 |          3        0.64       89.19
         36 |          1        0.21       89.41
         38 |          8        1.69       91.10
         39 |         14        2.97       94.07
         42 |         20        4.24       98.31
         43 |          8        1.69      100.00
------------+-----------------------------------
      Total |        472      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016