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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        563        5.63        5.63
          1 |        452        4.52       10.15
          2 |        118        1.18       11.33
          3 |        527        5.27       16.60
          4 |         71        0.71       17.31
          5 |        112        1.12       18.43
          6 |        528        5.28       23.71
          7 |        138        1.38       25.09
          8 |         86        0.86       25.95
          9 |        694        6.94       32.89
         10 |        175        1.75       34.64
         11 |        526        5.26       39.90
         12 |      5,153       51.53       91.43
         13 |         62        0.62       92.05
         14 |        352        3.52       95.57
         18 |         53        0.53       96.10
         99 |        390        3.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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