Frequencies for harm_ev variable in accident dataset :

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          8        1.73        1.73
          5 |          8        1.73        3.46
          7 |         13        2.81        6.26
          8 |        163       35.21       41.47
          9 |         13        2.81       44.28
         11 |          1        0.22       44.49
         12 |        131       28.29       72.79
         13 |          4        0.86       73.65
         14 |         13        2.81       76.46
         15 |          1        0.22       76.67
         16 |          1        0.22       76.89
         22 |          1        0.22       77.11
         25 |          5        1.08       78.19
         26 |          4        0.86       79.05
         30 |         27        5.83       84.88
         31 |          1        0.22       85.10
         33 |          3        0.65       85.75
         34 |          1        0.22       85.96
         35 |          6        1.30       87.26
         36 |          1        0.22       87.47
         38 |         11        2.38       89.85
         39 |          8        1.73       91.58
         42 |         35        7.56       99.14
         43 |          4        0.86      100.00
------------+-----------------------------------
      Total |        463      100.00

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