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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,602       16.02       16.02
          2 |        112        1.12       17.14
          3 |         53        0.53       17.67
          5 |         42        0.42       18.09
          6 |          2        0.02       18.11
          7 |         17        0.17       18.28
          8 |      1,117       11.17       29.45
          9 |        200        2.00       31.45
         10 |         25        0.25       31.70
         11 |         14        0.14       31.84
         12 |      4,979       49.79       81.63
         13 |         66        0.66       82.29
         14 |         78        0.78       83.07
         15 |         53        0.53       83.60
         16 |          3        0.03       83.63
         17 |         15        0.15       83.78
         18 |         17        0.17       83.95
         19 |         23        0.23       84.18
         20 |          4        0.04       84.22
         21 |         19        0.19       84.41
         22 |          3        0.03       84.44
         23 |          9        0.09       84.53
         24 |         89        0.89       85.42
         25 |         49        0.49       85.91
         26 |          4        0.04       85.95
         27 |         32        0.32       86.27
         28 |          8        0.08       86.35
         29 |         41        0.41       86.76
         30 |        154        1.54       88.30
         31 |         18        0.18       88.48
         32 |         29        0.29       88.77
         33 |         22        0.22       88.99
         34 |         30        0.30       89.29
         35 |         45        0.45       89.74
         36 |         19        0.19       89.93
         37 |         15        0.15       90.08
         38 |         47        0.47       90.55
         39 |         50        0.50       91.05
         40 |          2        0.02       91.07
         41 |          3        0.03       91.10
         42 |        657        6.57       97.67
         43 |         37        0.37       98.04
         45 |          4        0.04       98.08
         46 |         20        0.20       98.28
         47 |          6        0.06       98.34
         48 |          1        0.01       98.35
         49 |          2        0.02       98.37
         50 |          2        0.02       98.39
         52 |         10        0.10       98.49
         53 |          1        0.01       98.50
         54 |        125        1.25       99.75
         57 |          2        0.02       99.77
         60 |          2        0.02       99.79
         99 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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