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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,132       61.32       61.32
          1 |        477        4.77       66.09
          2 |      1,141       11.41       77.50
          3 |         12        0.12       77.62
          4 |      2,044       20.44       98.06
          5 |        105        1.05       99.11
          6 |         76        0.76       99.87
          9 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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