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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        803        8.03        8.03
          1 |        297        2.97       11.00
          2 |        144        1.44       12.44
          3 |        507        5.07       17.51
          4 |         71        0.71       18.22
          5 |         98        0.98       19.20
          6 |        542        5.42       24.62
          7 |        128        1.28       25.90
          8 |         94        0.94       26.84
          9 |        733        7.33       34.17
         10 |        171        1.71       35.88
         11 |        337        3.37       39.25
         12 |      5,298       52.98       92.23
         13 |         38        0.38       92.61
         14 |        428        4.28       96.89
         99 |        311        3.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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