Frequencies for man_coll variable in accident dataset :

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        370       75.66       75.66
          1 |         15        3.07       78.73
          2 |         51       10.43       89.16
          3 |          1        0.20       89.37
          4 |         47        9.61       98.98
          5 |          2        0.41       99.39
          6 |          3        0.61      100.00
------------+-----------------------------------
      Total |        489      100.00

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