Frequencies for first 10,000 rows of weather1 variable in accident dataset :

Atmospheric |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,805       78.05       78.05
          2 |        614        6.14       84.19
          3 |         23        0.23       84.42
          4 |         93        0.93       85.35
          5 |         85        0.85       86.20
          6 |          8        0.08       86.28
          7 |          1        0.01       86.29
          8 |         16        0.16       86.45
         10 |      1,203       12.03       98.48
         11 |          6        0.06       98.54
         98 |         18        0.18       98.72
         99 |        128        1.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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