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

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,137       91.37       91.37
          2 |        562        5.62       96.99
          3 |          5        0.05       97.04
          4 |         50        0.50       97.54
          5 |        189        1.89       99.43
          6 |         10        0.10       99.53
          8 |         12        0.12       99.65
          9 |         35        0.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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