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

       Most |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,617       16.17       16.17
          2 |        120        1.20       17.37
          3 |         63        0.63       18.00
          5 |         34        0.34       18.34
          7 |         11        0.11       18.45
          8 |      1,178       11.78       30.23
          9 |        168        1.68       31.91
         10 |         71        0.71       32.62
         11 |         20        0.20       32.82
         12 |      5,184       51.84       84.66
         13 |        158        1.58       86.24
         14 |        146        1.46       87.70
         15 |         15        0.15       87.85
         16 |          1        0.01       87.86
         17 |         29        0.29       88.15
         18 |         21        0.21       88.36
         19 |         16        0.16       88.52
         20 |          2        0.02       88.54
         21 |         33        0.33       88.87
         22 |         17        0.17       89.04
         23 |         13        0.13       89.17
         24 |         63        0.63       89.80
         25 |         25        0.25       90.05
         26 |          7        0.07       90.12
         27 |         15        0.15       90.27
         29 |         53        0.53       90.80
         30 |        169        1.69       92.49
         31 |         26        0.26       92.75
         32 |         16        0.16       92.91
         33 |         29        0.29       93.20
         34 |         39        0.39       93.59
         35 |         40        0.40       93.99
         36 |         15        0.15       94.14
         37 |         15        0.15       94.29
         38 |         31        0.31       94.60
         39 |         42        0.42       95.02
         40 |          4        0.04       95.06
         41 |          4        0.04       95.10
         42 |        458        4.58       99.68
         43 |         29        0.29       99.97
         99 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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