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

   areas of |
   impact - |
    initial |
    contact |
      point |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        769        7.69        7.69
          1 |        228        2.28        9.97
          2 |         88        0.88       10.85
          3 |        263        2.63       13.48
          4 |         62        0.62       14.10
          5 |         74        0.74       14.84
          6 |        659        6.59       21.43
          7 |         77        0.77       22.20
          8 |         69        0.69       22.89
          9 |        284        2.84       25.73
         10 |        106        1.06       26.79
         11 |        239        2.39       29.18
         12 |      5,351       53.51       82.69
         13 |         21        0.21       82.90
         14 |        275        2.75       85.65
         18 |          6        0.06       85.71
         19 |          8        0.08       85.79
         61 |        260        2.60       88.39
         62 |        151        1.51       89.90
         63 |         58        0.58       90.48
         81 |        233        2.33       92.81
         82 |        123        1.23       94.04
         83 |         56        0.56       94.60
         98 |        407        4.07       98.67
         99 |        133        1.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016