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

      light |
  condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,515       45.15       45.15
          2 |      2,588       25.88       71.03
          3 |      2,296       22.96       93.99
          4 |        205        2.05       96.04
          5 |        260        2.60       98.64
          6 |         71        0.71       99.35
          7 |          1        0.01       99.36
          8 |         10        0.10       99.46
          9 |         54        0.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016