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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,497       14.97       14.97
          2 |        145        1.45       16.42
          3 |         62        0.62       17.04
          5 |         43        0.43       17.47
          6 |          3        0.03       17.50
          7 |         15        0.15       17.65
          8 |      1,194       11.94       29.59
          9 |        191        1.91       31.50
         10 |         48        0.48       31.98
         11 |          9        0.09       32.07
         12 |      5,336       53.36       85.43
         13 |        152        1.52       86.95
         14 |         92        0.92       87.87
         15 |         12        0.12       87.99
         16 |          3        0.03       88.02
         17 |         12        0.12       88.14
         18 |         12        0.12       88.26
         19 |         20        0.20       88.46
         20 |          2        0.02       88.48
         21 |         23        0.23       88.71
         22 |          6        0.06       88.77
         23 |         28        0.28       89.05
         24 |         64        0.64       89.69
         25 |         35        0.35       90.04
         26 |          2        0.02       90.06
         27 |         19        0.19       90.25
         29 |         45        0.45       90.70
         30 |        124        1.24       91.94
         31 |          7        0.07       92.01
         32 |         37        0.37       92.38
         33 |          8        0.08       92.46
         34 |         37        0.37       92.83
         35 |         47        0.47       93.30
         36 |         15        0.15       93.45
         37 |         31        0.31       93.76
         38 |         16        0.16       93.92
         39 |         29        0.29       94.21
         40 |          2        0.02       94.23
         41 |          2        0.02       94.25
         42 |        482        4.82       99.07
         43 |         28        0.28       99.35
         45 |          3        0.03       99.38
         46 |         27        0.27       99.65
         99 |         35        0.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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