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

       Most |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,590       15.90       15.90
          2 |        144        1.44       17.34
          3 |         65        0.65       17.99
          4 |          2        0.02       18.01
          5 |         65        0.65       18.66
          6 |          1        0.01       18.67
          7 |          3        0.03       18.70
          8 |      1,082       10.82       29.52
          9 |        149        1.49       31.01
         10 |         59        0.59       31.60
         11 |          5        0.05       31.65
         12 |      5,246       52.46       84.11
         13 |         60        0.60       84.71
         14 |        146        1.46       86.17
         15 |          9        0.09       86.26
         16 |         16        0.16       86.42
         18 |         29        0.29       86.71
         19 |         68        0.68       87.39
         20 |         76        0.76       88.15
         21 |         29        0.29       88.44
         22 |        105        1.05       89.49
         23 |         41        0.41       89.90
         24 |         95        0.95       90.85
         25 |         79        0.79       91.64
         26 |         27        0.27       91.91
         27 |        385        3.85       95.76
         28 |        232        2.32       98.08
         29 |         19        0.19       98.27
         31 |         75        0.75       99.02
         32 |         44        0.44       99.46
         33 |         46        0.46       99.92
         99 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016