Frequencies for first 10,000 rows of m_harm variable in vehicle dataset :

       most |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,189       11.89       11.89
          2 |         98        0.98       12.87
          3 |         32        0.32       13.19
          5 |         37        0.37       13.56
          6 |          1        0.01       13.57
          8 |      1,415       14.15       27.72
          9 |        221        2.21       29.93
         10 |         16        0.16       30.09
         11 |         11        0.11       30.20
         12 |      5,390       53.90       84.10
         14 |         73        0.73       84.83
         15 |         49        0.49       85.32
         16 |          1        0.01       85.33
         17 |         15        0.15       85.48
         18 |         31        0.31       85.79
         19 |         18        0.18       85.97
         20 |          5        0.05       86.02
         21 |         22        0.22       86.24
         23 |         11        0.11       86.35
         24 |         61        0.61       86.96
         25 |         38        0.38       87.34
         26 |          2        0.02       87.36
         30 |        134        1.34       88.70
         31 |         10        0.10       88.80
         32 |         28        0.28       89.08
         33 |         76        0.76       89.84
         34 |         28        0.28       90.12
         35 |         65        0.65       90.77
         38 |         38        0.38       91.15
         39 |         26        0.26       91.41
         40 |          5        0.05       91.46
         41 |          2        0.02       91.48
         42 |        552        5.52       97.00
         43 |         42        0.42       97.42
         45 |          1        0.01       97.43
         46 |         15        0.15       97.58
         50 |          2        0.02       97.60
         52 |         11        0.11       97.71
         53 |          8        0.08       97.79
         54 |        166        1.66       99.45
         57 |          4        0.04       99.49
         58 |          8        0.08       99.57
         59 |         23        0.23       99.80
         73 |          2        0.02       99.82
         99 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016