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

      Light |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,182       41.82       41.82
          2 |      3,283       32.83       74.65
          3 |      2,104       21.04       95.69
          4 |        158        1.58       97.27
          5 |        248        2.48       99.75
          9 |         25        0.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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