Frequencies for first 10,000 rows of harm_ev variable in accident dataset :

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,053       10.53       10.53
          2 |          1        0.01       10.54
          3 |         17        0.17       10.71
          5 |         64        0.64       11.35
          6 |          4        0.04       11.39
          7 |         16        0.16       11.55
          8 |      1,561       15.61       27.16
          9 |        293        2.93       30.09
         10 |         56        0.56       30.65
         11 |         24        0.24       30.89
         12 |      3,759       37.59       68.48
         13 |        182        1.82       70.30
         14 |        127        1.27       71.57
         15 |         34        0.34       71.91
         16 |          3        0.03       71.94
         17 |         34        0.34       72.28
         18 |         25        0.25       72.53
         19 |         19        0.19       72.72
         20 |          5        0.05       72.77
         21 |         35        0.35       73.12
         22 |          6        0.06       73.18
         23 |         31        0.31       73.49
         24 |        241        2.41       75.90
         25 |         76        0.76       76.66
         26 |          3        0.03       76.69
         27 |         93        0.93       77.62
         28 |          3        0.03       77.65
         29 |         33        0.33       77.98
         30 |        215        2.15       80.13
         31 |        104        1.04       81.17
         32 |        135        1.35       82.52
         33 |        302        3.02       85.54
         34 |        171        1.71       87.25
         35 |        116        1.16       88.41
         36 |         18        0.18       88.59
         37 |         85        0.85       89.44
         38 |        135        1.35       90.79
         39 |         24        0.24       91.03
         40 |          9        0.09       91.12
         41 |         25        0.25       91.37
         42 |        666        6.66       98.03
         43 |        138        1.38       99.41
         44 |          3        0.03       99.44
         45 |         13        0.13       99.57
         46 |          7        0.07       99.64
         47 |          1        0.01       99.65
         48 |          6        0.06       99.71
         49 |          1        0.01       99.72
         99 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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