Frequencies for first 10,000 rows of impact1 variable in vehicle dataset :

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        672        6.72        6.72
          1 |        789        7.89       14.61
          2 |        212        2.12       16.73
          3 |        576        5.76       22.49
          4 |        102        1.02       23.51
          5 |        110        1.10       24.61
          6 |        420        4.20       28.81
          7 |        129        1.29       30.10
          8 |        144        1.44       31.54
          9 |        660        6.60       38.14
         10 |        260        2.60       40.74
         11 |        811        8.11       48.85
         12 |      4,407       44.07       92.92
         13 |         25        0.25       93.17
         14 |        495        4.95       98.12
         15 |          4        0.04       98.16
         16 |          2        0.02       98.18
         99 |        182        1.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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