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

      Light |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,945       39.45       39.45
          2 |      3,404       34.04       73.49
          3 |      2,292       22.92       96.41
          4 |        101        1.01       97.42
          5 |        240        2.40       99.82
          9 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016