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

   weather1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,252       92.52       92.52
          2 |        482        4.82       97.34
          3 |          7        0.07       97.41
          4 |         53        0.53       97.94
          5 |         98        0.98       98.92
          6 |         19        0.19       99.11
          7 |          8        0.08       99.19
          8 |          4        0.04       99.23
          9 |         77        0.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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