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

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,162       11.62       11.62
          2 |          1        0.01       11.63
          3 |         12        0.12       11.75
          4 |          1        0.01       11.76
          5 |         65        0.65       12.41
          6 |          1        0.01       12.42
          7 |         30        0.30       12.72
          8 |      1,357       13.57       26.29
          9 |        274        2.74       29.03
         10 |         31        0.31       29.34
         11 |         25        0.25       29.59
         12 |      3,782       37.82       67.41
         13 |        140        1.40       68.81
         14 |        138        1.38       70.19
         15 |         24        0.24       70.43
         16 |          8        0.08       70.51
         17 |         33        0.33       70.84
         18 |         41        0.41       71.25
         19 |         10        0.10       71.35
         20 |          6        0.06       71.41
         21 |         25        0.25       71.66
         22 |          5        0.05       71.71
         23 |         31        0.31       72.02
         24 |        236        2.36       74.38
         25 |         81        0.81       75.19
         26 |          3        0.03       75.22
         27 |        127        1.27       76.49
         28 |          3        0.03       76.52
         29 |         34        0.34       76.86
         30 |        169        1.69       78.55
         31 |         73        0.73       79.28
         32 |         80        0.80       80.08
         33 |        485        4.85       84.93
         34 |        175        1.75       86.68
         35 |        137        1.37       88.05
         36 |         27        0.27       88.32
         37 |         45        0.45       88.77
         38 |        136        1.36       90.13
         39 |         54        0.54       90.67
         40 |          6        0.06       90.73
         41 |         33        0.33       91.06
         42 |        615        6.15       97.21
         43 |        115        1.15       98.36
         44 |          6        0.06       98.42
         45 |          6        0.06       98.48
         46 |         18        0.18       98.66
         47 |          2        0.02       98.68
         48 |          3        0.03       98.71
         50 |          5        0.05       98.76
         51 |          5        0.05       98.81
         52 |         31        0.31       99.12
         53 |         49        0.49       99.61
         54 |          3        0.03       99.64
         60 |          3        0.03       99.67
         99 |         33        0.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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