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

      First |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,061       10.61       10.61
          2 |          6        0.06       10.67
          3 |         33        0.33       11.00
          4 |          2        0.02       11.02
          5 |        105        1.05       12.07
          6 |          1        0.01       12.08
          7 |         17        0.17       12.25
          8 |      1,810       18.10       30.35
          9 |        235        2.35       32.70
         10 |         75        0.75       33.45
         11 |         22        0.22       33.67
         12 |      3,491       34.91       68.58
         13 |         57        0.57       69.15
         14 |        247        2.47       71.62
         15 |         19        0.19       71.81
         16 |         39        0.39       72.20
         18 |         15        0.15       72.35
         19 |        162        1.62       73.97
         20 |        530        5.30       79.27
         21 |         69        0.69       79.96
         22 |        344        3.44       83.40
         23 |        111        1.11       84.51
         24 |        297        2.97       87.48
         25 |         47        0.47       87.95
         26 |         68        0.68       88.63
         27 |        459        4.59       93.22
         28 |        289        2.89       96.11
         29 |         61        0.61       96.72
         31 |        205        2.05       98.77
         32 |         39        0.39       99.16
         33 |         79        0.79       99.95
         99 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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