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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,675       16.75       16.75
          2 |         62        0.62       17.37
          3 |         42        0.42       17.79
          5 |         32        0.32       18.11
          6 |          1        0.01       18.12
          7 |          8        0.08       18.20
          8 |      1,111       11.11       29.31
          9 |        168        1.68       30.99
         10 |         41        0.41       31.40
         11 |          9        0.09       31.49
         12 |      5,347       53.47       84.96
         13 |        148        1.48       86.44
         14 |         78        0.78       87.22
         15 |         28        0.28       87.50
         16 |          4        0.04       87.54
         17 |         21        0.21       87.75
         18 |          5        0.05       87.80
         19 |         22        0.22       88.02
         20 |          3        0.03       88.05
         21 |         35        0.35       88.40
         22 |          2        0.02       88.42
         23 |          9        0.09       88.51
         24 |         64        0.64       89.15
         25 |         27        0.27       89.42
         26 |          2        0.02       89.44
         27 |         13        0.13       89.57
         28 |          2        0.02       89.59
         29 |         38        0.38       89.97
         30 |        146        1.46       91.43
         31 |         16        0.16       91.59
         32 |         26        0.26       91.85
         33 |         15        0.15       92.00
         34 |         22        0.22       92.22
         35 |         36        0.36       92.58
         36 |          9        0.09       92.67
         37 |         20        0.20       92.87
         38 |         33        0.33       93.20
         39 |         22        0.22       93.42
         40 |          5        0.05       93.47
         41 |          1        0.01       93.48
         42 |        565        5.65       99.13
         43 |         26        0.26       99.39
         44 |          1        0.01       99.40
         45 |          9        0.09       99.49
         46 |         11        0.11       99.60
         47 |          9        0.09       99.69
         48 |          2        0.02       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