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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,670       16.70       16.70
          2 |         57        0.57       17.27
          3 |         38        0.38       17.65
          4 |          1        0.01       17.66
          5 |         32        0.32       17.98
          6 |          2        0.02       18.00
          7 |         16        0.16       18.16
          8 |      1,096       10.96       29.12
          9 |        153        1.53       30.65
         10 |         43        0.43       31.08
         11 |         17        0.17       31.25
         12 |      5,288       52.88       84.13
         13 |        195        1.95       86.08
         14 |         74        0.74       86.82
         15 |         26        0.26       87.08
         16 |          5        0.05       87.13
         17 |         22        0.22       87.35
         18 |         11        0.11       87.46
         19 |         16        0.16       87.62
         20 |          6        0.06       87.68
         21 |         29        0.29       87.97
         22 |          5        0.05       88.02
         23 |         18        0.18       88.20
         24 |         80        0.80       89.00
         25 |         49        0.49       89.49
         27 |         26        0.26       89.75
         28 |          2        0.02       89.77
         29 |         41        0.41       90.18
         30 |        142        1.42       91.60
         31 |         19        0.19       91.79
         32 |         35        0.35       92.14
         33 |         19        0.19       92.33
         34 |         27        0.27       92.60
         35 |         29        0.29       92.89
         36 |         12        0.12       93.01
         37 |         21        0.21       93.22
         38 |         29        0.29       93.51
         39 |         36        0.36       93.87
         40 |          3        0.03       93.90
         41 |          1        0.01       93.91
         42 |        514        5.14       99.05
         43 |         46        0.46       99.51
         45 |          5        0.05       99.56
         46 |         22        0.22       99.78
         47 |          6        0.06       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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