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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,513       45.13       45.13
          1 |        835        8.35       53.48
          2 |      1,872       18.72       72.20
          4 |      2,414       24.14       96.34
          5 |        265        2.65       98.99
          6 |         94        0.94       99.93
          9 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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