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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,360       63.60       63.60
          1 |        495        4.95       68.55
          2 |      1,258       12.58       81.13
          3 |          7        0.07       81.20
          4 |      1,695       16.95       98.15
          7 |        178        1.78       99.93
          9 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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