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

    weather |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,956       89.56       89.56
          2 |        801        8.01       97.57
          3 |         12        0.12       97.69
          4 |         49        0.49       98.18
          5 |        134        1.34       99.52
          6 |          7        0.07       99.59
          8 |          9        0.09       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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