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

       Most |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,596       15.96       15.96
          2 |        125        1.25       17.21
          3 |         53        0.53       17.74
          5 |         38        0.38       18.12
          6 |          1        0.01       18.13
          7 |         11        0.11       18.24
          8 |      1,148       11.48       29.72
          9 |        168        1.68       31.40
         10 |         47        0.47       31.87
         11 |          6        0.06       31.93
         12 |      5,210       52.10       84.03
         13 |        186        1.86       85.89
         14 |        137        1.37       87.26
         15 |         16        0.16       87.42
         16 |          3        0.03       87.45
         17 |         28        0.28       87.73
         18 |         16        0.16       87.89
         19 |         25        0.25       88.14
         20 |          1        0.01       88.15
         21 |         21        0.21       88.36
         22 |         37        0.37       88.73
         23 |         14        0.14       88.87
         24 |         78        0.78       89.65
         25 |         18        0.18       89.83
         26 |          4        0.04       89.87
         27 |         22        0.22       90.09
         29 |         54        0.54       90.63
         30 |        159        1.59       92.22
         31 |         27        0.27       92.49
         32 |         44        0.44       92.93
         33 |         18        0.18       93.11
         34 |         55        0.55       93.66
         35 |         48        0.48       94.14
         36 |         11        0.11       94.25
         37 |         23        0.23       94.48
         38 |         40        0.40       94.88
         39 |         39        0.39       95.27
         40 |          8        0.08       95.35
         41 |          1        0.01       95.36
         42 |        431        4.31       99.67
         43 |         33        0.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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