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

       MOST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,656       16.56       16.56
          2 |         83        0.83       17.39
          3 |         41        0.41       17.80
          5 |         26        0.26       18.06
          7 |         15        0.15       18.21
          8 |      1,051       10.51       28.72
          9 |        160        1.60       30.32
         10 |         50        0.50       30.82
         11 |          9        0.09       30.91
         12 |      5,388       53.88       84.79
         13 |        147        1.47       86.26
         14 |         83        0.83       87.09
         15 |         28        0.28       87.37
         16 |          6        0.06       87.43
         17 |         26        0.26       87.69
         18 |         12        0.12       87.81
         19 |         23        0.23       88.04
         20 |          4        0.04       88.08
         21 |         21        0.21       88.29
         22 |          4        0.04       88.33
         23 |         19        0.19       88.52
         24 |         78        0.78       89.30
         25 |         37        0.37       89.67
         26 |          5        0.05       89.72
         27 |         14        0.14       89.86
         28 |          3        0.03       89.89
         29 |         42        0.42       90.31
         30 |        142        1.42       91.73
         31 |         15        0.15       91.88
         32 |         36        0.36       92.24
         33 |          9        0.09       92.33
         34 |         27        0.27       92.60
         35 |         31        0.31       92.91
         36 |         18        0.18       93.09
         37 |         16        0.16       93.25
         38 |         34        0.34       93.59
         39 |         29        0.29       93.88
         40 |          4        0.04       93.92
         41 |          1        0.01       93.93
         42 |        521        5.21       99.14
         43 |         32        0.32       99.46
         44 |          1        0.01       99.47
         45 |          7        0.07       99.54
         46 |         20        0.20       99.74
         47 |          7        0.07       99.81
         99 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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