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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,910       49.10       49.10
          2 |      2,702       27.02       76.12
          3 |      1,918       19.18       95.30
          4 |        208        2.08       97.38
          5 |        218        2.18       99.56
          9 |         44        0.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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