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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,434       44.34       44.34
          1 |        683        6.83       51.17
          2 |      1,827       18.27       69.44
          4 |      2,692       26.92       96.36
          5 |        207        2.07       98.43
          6 |        157        1.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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