Frequencies for impact1 variable in vehicle dataset :

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         33        4.32        4.32
          1 |         55        7.20       11.52
          2 |         10        1.31       12.83
          3 |         52        6.81       19.63
          4 |          1        0.13       19.76
          5 |          8        1.05       20.81
          6 |         25        3.27       24.08
          7 |         13        1.70       25.79
          8 |          2        0.26       26.05
          9 |         62        8.12       34.16
         10 |         15        1.96       36.13
         11 |         54        7.07       43.19
         12 |        429       56.15       99.35
         13 |          5        0.65      100.00
------------+-----------------------------------
      Total |        764      100.00

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