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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,755       47.55       47.55
          1 |        858        8.58       56.13
          2 |      1,845       18.45       74.58
          4 |      2,239       22.39       96.97
          5 |        215        2.15       99.12
          6 |         86        0.86       99.98
          9 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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