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

   weather1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,235       92.35       92.35
          2 |        531        5.31       97.66
          3 |          9        0.09       97.75
          4 |         44        0.44       98.19
          5 |        111        1.11       99.30
          6 |          4        0.04       99.34
          7 |          4        0.04       99.38
          8 |          8        0.08       99.46
          9 |         54        0.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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