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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,424       44.24       44.24
          1 |        797        7.97       52.21
          2 |      1,927       19.27       71.48
          4 |      2,475       24.75       96.23
          5 |        210        2.10       98.33
          6 |        110        1.10       99.43
          9 |         57        0.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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