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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,644       46.44       46.44
          2 |      2,978       29.78       76.22
          3 |      1,980       19.80       96.02
          4 |        159        1.59       97.61
          5 |        217        2.17       99.78
          9 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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