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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        615        6.15        6.15
          1 |        318        3.18        9.33
          2 |        223        2.23       11.56
          3 |        510        5.10       16.66
          4 |        104        1.04       17.70
          5 |         82        0.82       18.52
          6 |        499        4.99       23.51
          7 |        144        1.44       24.95
          8 |        101        1.01       25.96
          9 |        659        6.59       32.55
         10 |        170        1.70       34.25
         11 |        523        5.23       39.48
         12 |      5,304       53.04       92.52
         13 |         43        0.43       92.95
         14 |        323        3.23       96.18
         99 |        382        3.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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