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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        799        7.99        7.99
          2 |        769        7.69       15.68
          3 |        912        9.12       24.80
          4 |        842        8.42       33.22
          5 |        850        8.50       41.72
          6 |        837        8.37       50.09
          7 |        864        8.64       58.73
          8 |        862        8.62       67.35
          9 |        795        7.95       75.30
         10 |        872        8.72       84.02
         11 |        834        8.34       92.36
         12 |        764        7.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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