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

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,141       11.41       11.41
          2 |          1        0.01       11.42
          3 |         13        0.13       11.55
          5 |         52        0.52       12.07
          6 |          1        0.01       12.08
          7 |         26        0.26       12.34
          8 |      1,438       14.38       26.72
          9 |        294        2.94       29.66
         10 |         33        0.33       29.99
         11 |         33        0.33       30.32
         12 |      3,490       34.90       65.22
         13 |         67        0.67       65.89
         14 |        112        1.12       67.01
         15 |         51        0.51       67.52
         16 |          2        0.02       67.54
         17 |         37        0.37       67.91
         18 |         48        0.48       68.39
         19 |         15        0.15       68.54
         20 |         12        0.12       68.66
         21 |         24        0.24       68.90
         22 |          7        0.07       68.97
         23 |         31        0.31       69.28
         24 |        234        2.34       71.62
         25 |         99        0.99       72.61
         26 |          5        0.05       72.66
         27 |        157        1.57       74.23
         28 |          6        0.06       74.29
         29 |         26        0.26       74.55
         30 |        184        1.84       76.39
         31 |         74        0.74       77.13
         32 |        103        1.03       78.16
         33 |        496        4.96       83.12
         34 |        281        2.81       85.93
         35 |        148        1.48       87.41
         36 |         18        0.18       87.59
         37 |         57        0.57       88.16
         38 |        161        1.61       89.77
         39 |         61        0.61       90.38
         40 |          8        0.08       90.46
         41 |         26        0.26       90.72
         42 |        684        6.84       97.56
         43 |         79        0.79       98.35
         44 |          5        0.05       98.40
         45 |          4        0.04       98.44
         46 |         16        0.16       98.60
         47 |          2        0.02       98.62
         48 |          2        0.02       98.64
         49 |          3        0.03       98.67
         50 |          1        0.01       98.68
         51 |          2        0.02       98.70
         52 |         35        0.35       99.05
         53 |         76        0.76       99.81
         54 |          4        0.04       99.85
         57 |          3        0.03       99.88
         60 |          1        0.01       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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