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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,206       62.06       62.06
          1 |        558        5.58       67.64
          2 |      1,242       12.42       80.06
          4 |      1,833       18.33       98.39
          5 |        114        1.14       99.53
          6 |         43        0.43       99.96
          9 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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