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

   weather1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,071       90.71       90.71
          2 |        657        6.57       97.28
          3 |          8        0.08       97.36
          4 |         61        0.61       97.97
          5 |         68        0.68       98.65
          6 |         15        0.15       98.80
          7 |          6        0.06       98.86
          8 |         15        0.15       99.01
          9 |         99        0.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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