Frequencies for man_coll variable in vehicle dataset :

  MANNER OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        261       47.98       47.98
          1 |         66       12.13       60.11
          2 |         82       15.07       75.18
          4 |         48        8.82       84.01
          5 |         48        8.82       92.83
          6 |          4        0.74       93.57
          7 |          7        1.29       94.85
          8 |         26        4.78       99.63
          9 |          2        0.37      100.00
------------+-----------------------------------
      Total |        544      100.00

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