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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        532        5.32        5.32
          1 |        387        3.87        9.19
          2 |        152        1.52       10.71
          3 |        495        4.95       15.66
          4 |         96        0.96       16.62
          5 |        100        1.00       17.62
          6 |        598        5.98       23.60
          7 |        125        1.25       24.85
          8 |         98        0.98       25.83
          9 |        594        5.94       31.77
         10 |        153        1.53       33.30
         11 |        467        4.67       37.97
         12 |      5,220       52.20       90.17
         13 |         54        0.54       90.71
         14 |        411        4.11       94.82
         18 |         62        0.62       95.44
         99 |        456        4.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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