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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,366       63.66       63.66
          1 |        490        4.90       68.56
          2 |      1,097       10.97       79.53
          3 |          5        0.05       79.58
          4 |      1,834       18.34       97.92
          7 |        190        1.90       99.82
          9 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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