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

       Most |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,470       14.70       14.70
          2 |         82        0.82       15.52
          3 |         92        0.92       16.44
          4 |          1        0.01       16.45
          5 |         66        0.66       17.11
          6 |          3        0.03       17.14
          7 |         17        0.17       17.31
          8 |      1,277       12.77       30.08
          9 |        150        1.50       31.58
         10 |         37        0.37       31.95
         11 |          8        0.08       32.03
         12 |      5,262       52.62       84.65
         13 |        125        1.25       85.90
         14 |        116        1.16       87.06
         15 |          6        0.06       87.12
         16 |          1        0.01       87.13
         17 |         32        0.32       87.45
         18 |         27        0.27       87.72
         19 |         31        0.31       88.03
         20 |          2        0.02       88.05
         21 |         54        0.54       88.59
         22 |         22        0.22       88.81
         23 |         20        0.20       89.01
         24 |         88        0.88       89.89
         25 |         17        0.17       90.06
         26 |          7        0.07       90.13
         27 |         17        0.17       90.30
         29 |         47        0.47       90.77
         30 |        188        1.88       92.65
         31 |         42        0.42       93.07
         32 |         32        0.32       93.39
         33 |         20        0.20       93.59
         34 |         40        0.40       93.99
         35 |         59        0.59       94.58
         36 |         23        0.23       94.81
         37 |         37        0.37       95.18
         38 |         45        0.45       95.63
         39 |         29        0.29       95.92
         40 |          5        0.05       95.97
         41 |          2        0.02       95.99
         42 |        352        3.52       99.51
         43 |         44        0.44       99.95
         99 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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