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

      Light |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,933       39.33       39.33
          2 |      3,421       34.21       73.54
          3 |      2,255       22.55       96.09
          4 |        130        1.30       97.39
          5 |        241        2.41       99.80
          9 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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