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

      LIGHT |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,650       46.50       46.50
          2 |      2,900       29.00       75.50
          3 |      1,981       19.81       95.31
          4 |        181        1.81       97.12
          5 |        235        2.35       99.47
          9 |         53        0.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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