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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,499       44.99       44.99
          1 |        903        9.03       54.02
          2 |      1,829       18.29       72.31
          4 |      2,501       25.01       97.32
          5 |        212        2.12       99.44
          6 |         51        0.51       99.95
          9 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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