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

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,120       91.20       91.20
          2 |        633        6.33       97.53
          3 |          9        0.09       97.62
          4 |         58        0.58       98.20
          5 |        139        1.39       99.59
          6 |          4        0.04       99.63
          8 |         23        0.23       99.86
          9 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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