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

      Light |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,457       44.57       44.57
          2 |      3,025       30.25       74.82
          3 |      2,074       20.74       95.56
          4 |        194        1.94       97.50
          5 |        232        2.32       99.82
          9 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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