Frequencies for m_harm variable in vehicle dataset :

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         32        4.19        4.19
          2 |          7        0.92        5.10
          3 |          2        0.26        5.37
          5 |          6        0.79        6.15
          7 |         14        1.83        7.98
          8 |        186       24.35       32.33
          9 |         12        1.57       33.90
         12 |        367       48.04       81.94
         14 |         14        1.83       83.77
         15 |          3        0.39       84.16
         21 |          1        0.13       84.29
         22 |          4        0.52       84.82
         25 |         24        3.14       87.96
         30 |         34        4.45       92.41
         35 |          5        0.65       93.06
         36 |          1        0.13       93.19
         38 |          9        1.18       94.37
         39 |         12        1.57       95.94
         42 |         27        3.53       99.48
         43 |          4        0.52      100.00
------------+-----------------------------------
      Total |        764      100.00

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