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

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,771       87.71       87.71
          2 |        984        9.84       97.55
          3 |          5        0.05       97.60
          4 |         73        0.73       98.33
          5 |        113        1.13       99.46
          6 |          8        0.08       99.54
          8 |         14        0.14       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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