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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,445       64.45       64.45
          1 |        497        4.97       69.42
          2 |      1,211       12.11       81.53
          3 |          1        0.01       81.54
          4 |      1,673       16.73       98.27
          5 |        107        1.07       99.34
          6 |         55        0.55       99.89
          9 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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