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

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,045       90.45       90.45
          2 |        726        7.26       97.71
          3 |          9        0.09       97.80
          4 |         54        0.54       98.34
          5 |        124        1.24       99.58
          6 |         13        0.13       99.71
          8 |         16        0.16       99.87
          9 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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