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

      first |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        824        8.24        8.24
          2 |          4        0.04        8.28
          3 |         11        0.11        8.39
          5 |         56        0.56        8.95
          7 |          5        0.05        9.00
          8 |      1,912       19.12       28.12
          9 |        359        3.59       31.71
         10 |         26        0.26       31.97
         11 |         28        0.28       32.25
         12 |      3,736       37.36       69.61
         14 |         99        0.99       70.60
         15 |         77        0.77       71.37
         16 |          4        0.04       71.41
         17 |         30        0.30       71.71
         18 |         44        0.44       72.15
         19 |         15        0.15       72.30
         20 |         10        0.10       72.40
         21 |         20        0.20       72.60
         23 |         20        0.20       72.80
         24 |        198        1.98       74.78
         25 |         85        0.85       75.63
         26 |          6        0.06       75.69
         30 |        158        1.58       77.27
         31 |         62        0.62       77.89
         32 |        110        1.10       78.99
         33 |        501        5.01       84.00
         34 |        166        1.66       85.66
         35 |        213        2.13       87.79
         38 |        114        1.14       88.93
         39 |         26        0.26       89.19
         40 |          3        0.03       89.22
         41 |         21        0.21       89.43
         42 |        645        6.45       95.88
         43 |         87        0.87       96.75
         44 |          4        0.04       96.79
         45 |          2        0.02       96.81
         46 |         10        0.10       96.91
         48 |          2        0.02       96.93
         50 |          3        0.03       96.96
         51 |          2        0.02       96.98
         52 |         40        0.40       97.38
         53 |         58        0.58       97.96
         54 |          6        0.06       98.02
         57 |          9        0.09       98.11
         58 |         16        0.16       98.27
         59 |        153        1.53       99.80
         72 |          1        0.01       99.81
         73 |          2        0.02       99.83
         99 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016