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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,779       47.79       47.79
          2 |      2,817       28.17       75.96
          3 |      1,912       19.12       95.08
          4 |        205        2.05       97.13
          5 |        231        2.31       99.44
          9 |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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