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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,527       45.27       45.27
          1 |        942        9.42       54.69
          2 |      1,606       16.06       70.75
          4 |      2,625       26.25       97.00
          5 |        185        1.85       98.85
          6 |        105        1.05       99.90
          9 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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