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

      Light |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,376       43.76       43.76
          2 |      3,204       32.04       75.80
          3 |      1,968       19.68       95.48
          4 |        147        1.47       96.95
          5 |        288        2.88       99.83
          9 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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