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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,082       60.82       60.82
          1 |        450        4.50       65.32
          2 |      1,159       11.59       76.91
          4 |      2,086       20.86       97.77
          5 |        113        1.13       98.90
          6 |         85        0.85       99.75
          9 |         25        0.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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