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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,745       47.45       47.45
          2 |      2,714       27.14       74.59
          3 |      2,010       20.10       94.69
          4 |        184        1.84       96.53
          5 |        274        2.74       99.27
          9 |         73        0.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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