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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        692        6.92        6.92
          1 |        294        2.94        9.86
          2 |        209        2.09       11.95
          3 |        543        5.43       17.38
          4 |         64        0.64       18.02
          5 |         93        0.93       18.95
          6 |        467        4.67       23.62
          7 |        149        1.49       25.11
          8 |         83        0.83       25.94
          9 |        749        7.49       33.43
         10 |        124        1.24       34.67
         11 |        500        5.00       39.67
         12 |      5,219       52.19       91.86
         13 |         28        0.28       92.14
         14 |        455        4.55       96.69
         99 |        331        3.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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