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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,665       46.65       46.65
          1 |        771        7.71       54.36
          2 |      1,811       18.11       72.47
          3 |          2        0.02       72.49
          4 |      2,455       24.55       97.04
          5 |        178        1.78       98.82
          6 |        103        1.03       99.85
          9 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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