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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,609       46.09       46.09
          1 |        826        8.26       54.35
          2 |      1,810       18.10       72.45
          4 |      2,408       24.08       96.53
          5 |        188        1.88       98.41
          6 |        149        1.49       99.90
          9 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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