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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,821       48.21       48.21
          2 |      2,827       28.27       76.48
          3 |      1,880       18.80       95.28
          4 |        195        1.95       97.23
          5 |        232        2.32       99.55
          9 |         45        0.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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