Frequencies for first 10,000 rows of harm_ev variable in accident dataset :

      First |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,161       11.61       11.61
          2 |          9        0.09       11.70
          3 |         27        0.27       11.97
          5 |         91        0.91       12.88
          6 |          2        0.02       12.90
          7 |         47        0.47       13.37
          8 |      1,669       16.69       30.06
          9 |        286        2.86       32.92
         10 |         67        0.67       33.59
         11 |         22        0.22       33.81
         12 |      3,626       36.26       70.07
         13 |        145        1.45       71.52
         14 |        186        1.86       73.38
         15 |         32        0.32       73.70
         16 |          2        0.02       73.72
         17 |         47        0.47       74.19
         18 |         48        0.48       74.67
         19 |         12        0.12       74.79
         20 |          2        0.02       74.81
         21 |         33        0.33       75.14
         22 |         28        0.28       75.42
         23 |         32        0.32       75.74
         24 |        265        2.65       78.39
         25 |         63        0.63       79.02
         26 |         13        0.13       79.15
         27 |         88        0.88       80.03
         28 |          1        0.01       80.04
         29 |         45        0.45       80.49
         30 |        242        2.42       82.91
         31 |         93        0.93       83.84
         32 |         69        0.69       84.53
         33 |        276        2.76       87.29
         34 |        156        1.56       88.85
         35 |        136        1.36       90.21
         36 |         35        0.35       90.56
         37 |         67        0.67       91.23
         38 |        130        1.30       92.53
         39 |         37        0.37       92.90
         40 |          3        0.03       92.93
         41 |         30        0.30       93.23
         42 |        518        5.18       98.41
         43 |        157        1.57       99.98
         44 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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