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

    weather |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,156       91.56       91.56
          2 |        562        5.62       97.18
          3 |          4        0.04       97.22
          4 |         44        0.44       97.66
          5 |        123        1.23       98.89
          6 |          3        0.03       98.92
          7 |          1        0.01       98.93
          8 |         28        0.28       99.21
          9 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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