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

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,060       90.60       90.60
          2 |        639        6.39       96.99
          3 |          8        0.08       97.07
          4 |         60        0.60       97.67
          5 |        149        1.49       99.16
          6 |         12        0.12       99.28
          7 |          2        0.02       99.30
          8 |         33        0.33       99.63
          9 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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