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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,620       46.20       46.20
          1 |        778        7.78       53.98
          2 |      1,893       18.93       72.91
          4 |      2,325       23.25       96.16
          5 |        275        2.75       98.91
          6 |        104        1.04       99.95
          9 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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