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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,427       64.27       64.27
          1 |        481        4.81       69.08
          2 |      1,093       10.93       80.01
          3 |          8        0.08       80.09
          4 |      1,808       18.08       98.17
          7 |        172        1.72       99.89
          9 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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