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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,577       45.77       45.77
          1 |        822        8.22       53.99
          2 |      1,516       15.16       69.15
          3 |          5        0.05       69.20
          4 |      2,724       27.24       96.44
          7 |        339        3.39       99.83
          9 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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