Frequencies for lgt_cond variable in accident dataset :

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        120       31.25       31.25
          2 |        110       28.65       59.90
          3 |        123       32.03       91.93
          4 |         19        4.95       96.88
          5 |         12        3.12      100.00
------------+-----------------------------------
      Total |        384      100.00

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