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

      FIRST |
    HARMFUL |
      EVENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,134       11.34       11.34
          2 |          1        0.01       11.35
          3 |         15        0.15       11.50
          5 |         59        0.59       12.09
          6 |          1        0.01       12.10
          7 |         20        0.20       12.30
          8 |      1,531       15.31       27.61
          9 |        260        2.60       30.21
         10 |         57        0.57       30.78
         11 |         20        0.20       30.98
         12 |      3,770       37.70       68.68
         13 |        164        1.64       70.32
         14 |        126        1.26       71.58
         15 |         31        0.31       71.89
         16 |          6        0.06       71.95
         17 |         35        0.35       72.30
         18 |         39        0.39       72.69
         19 |          8        0.08       72.77
         20 |          5        0.05       72.82
         21 |         34        0.34       73.16
         22 |          6        0.06       73.22
         23 |         45        0.45       73.67
         24 |        261        2.61       76.28
         25 |         93        0.93       77.21
         26 |          7        0.07       77.28
         27 |         96        0.96       78.24
         28 |          1        0.01       78.25
         29 |         18        0.18       78.43
         30 |        221        2.21       80.64
         31 |        103        1.03       81.67
         32 |        115        1.15       82.82
         33 |        333        3.33       86.15
         34 |        160        1.60       87.75
         35 |        113        1.13       88.88
         36 |         31        0.31       89.19
         37 |         64        0.64       89.83
         38 |        152        1.52       91.35
         39 |         34        0.34       91.69
         40 |          2        0.02       91.71
         41 |         35        0.35       92.06
         42 |        611        6.11       98.17
         43 |        135        1.35       99.52
         44 |          4        0.04       99.56
         45 |          7        0.07       99.63
         46 |         13        0.13       99.76
         47 |          4        0.04       99.80
         48 |          4        0.04       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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