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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,655       16.55       16.55
          2 |         84        0.84       17.39
          3 |         49        0.49       17.88
          5 |         25        0.25       18.13
          7 |         18        0.18       18.31
          8 |        997        9.97       28.28
          9 |        150        1.50       29.78
         10 |         33        0.33       30.11
         11 |         10        0.10       30.21
         12 |      5,327       53.27       83.48
         13 |         84        0.84       84.32
         14 |         90        0.90       85.22
         15 |         25        0.25       85.47
         17 |         20        0.20       85.67
         18 |         19        0.19       85.86
         19 |         12        0.12       85.98
         20 |          2        0.02       86.00
         21 |         23        0.23       86.23
         22 |          3        0.03       86.26
         23 |          9        0.09       86.35
         24 |         74        0.74       87.09
         25 |         48        0.48       87.57
         26 |          6        0.06       87.63
         27 |         20        0.20       87.83
         28 |          4        0.04       87.87
         29 |         32        0.32       88.19
         30 |        142        1.42       89.61
         31 |         19        0.19       89.80
         32 |         25        0.25       90.05
         33 |         33        0.33       90.38
         34 |         31        0.31       90.69
         35 |         51        0.51       91.20
         36 |         19        0.19       91.39
         37 |         11        0.11       91.50
         38 |         36        0.36       91.86
         39 |         45        0.45       92.31
         40 |          5        0.05       92.36
         41 |          2        0.02       92.38
         42 |        546        5.46       97.84
         43 |         27        0.27       98.11
         45 |          1        0.01       98.12
         46 |         21        0.21       98.33
         47 |          8        0.08       98.41
         48 |          2        0.02       98.43
         52 |          7        0.07       98.50
         53 |          3        0.03       98.53
         54 |        126        1.26       99.79
         55 |          1        0.01       99.80
         60 |          1        0.01       99.81
         99 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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