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

    INITIAL |
     IMPACT |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        621        6.21        6.21
          1 |        405        4.05       10.26
          2 |        119        1.19       11.45
          3 |        491        4.91       16.36
          4 |         87        0.87       17.23
          5 |        109        1.09       18.32
          6 |        489        4.89       23.21
          7 |        130        1.30       24.51
          8 |         73        0.73       25.24
          9 |        731        7.31       32.55
         10 |        202        2.02       34.57
         11 |        410        4.10       38.67
         12 |      5,208       52.08       90.75
         13 |         52        0.52       91.27
         14 |        451        4.51       95.78
         18 |         21        0.21       95.99
         99 |        401        4.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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