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

      First |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,146       11.46       11.46
          2 |          7        0.07       11.53
          3 |         20        0.20       11.73
          4 |          2        0.02       11.75
          5 |         66        0.66       12.41
          6 |          2        0.02       12.43
          7 |         21        0.21       12.64
          8 |      1,715       17.15       29.79
          9 |        284        2.84       32.63
         10 |         81        0.81       33.44
         11 |         23        0.23       33.67
         12 |      3,602       36.02       69.69
         13 |        152        1.52       71.21
         14 |        183        1.83       73.04
         15 |         15        0.15       73.19
         16 |          3        0.03       73.22
         17 |         51        0.51       73.73
         18 |         37        0.37       74.10
         19 |         16        0.16       74.26
         20 |          3        0.03       74.29
         21 |         21        0.21       74.50
         22 |         12        0.12       74.62
         23 |         51        0.51       75.13
         24 |        215        2.15       77.28
         25 |         76        0.76       78.04
         26 |         29        0.29       78.33
         27 |         93        0.93       79.26
         28 |          1        0.01       79.27
         29 |         36        0.36       79.63
         30 |        231        2.31       81.94
         31 |         79        0.79       82.73
         32 |         67        0.67       83.40
         33 |        300        3.00       86.40
         34 |        183        1.83       88.23
         35 |        171        1.71       89.94
         36 |         26        0.26       90.20
         37 |         45        0.45       90.65
         38 |        139        1.39       92.04
         39 |         46        0.46       92.50
         40 |         11        0.11       92.61
         41 |         32        0.32       92.93
         42 |        527        5.27       98.20
         43 |        172        1.72       99.92
         44 |          1        0.01       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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