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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,033       60.33       60.33
          1 |        497        4.97       65.30
          2 |      1,211       12.11       77.41
          4 |      2,019       20.19       97.60
          5 |        130        1.30       98.90
          6 |         72        0.72       99.62
          9 |         38        0.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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