Frequencies for first 10,000 rows of p_crash1 variable in vehicle dataset :

  pre-event |
   movement |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         61        0.61        0.61
          1 |      6,317       63.17       63.78
          2 |        114        1.14       64.92
          3 |         28        0.28       65.20
          4 |         27        0.27       65.47
          5 |        325        3.25       68.72
          6 |        170        1.70       70.42
          7 |          8        0.08       70.50
          8 |          7        0.07       70.57
         10 |        101        1.01       71.58
         11 |        653        6.53       78.11
         12 |         49        0.49       78.60
         13 |         23        0.23       78.83
         14 |      1,749       17.49       96.32
         15 |        159        1.59       97.91
         16 |         13        0.13       98.04
         17 |         15        0.15       98.19
         98 |         56        0.56       98.75
         99 |        125        1.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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