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

  MANNER OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,809       48.09       48.09
          1 |        840        8.40       56.49
          2 |      1,784       17.84       74.33
          4 |      2,309       23.09       97.42
          5 |        131        1.31       98.73
          6 |         92        0.92       99.65
          9 |         35        0.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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