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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        840        8.40        8.40
          2 |        791        7.91       16.31
          3 |        908        9.08       25.39
          4 |        876        8.76       34.15
          5 |        850        8.50       42.65
          6 |        770        7.70       50.35
          7 |        833        8.33       58.68
          8 |        886        8.86       67.54
          9 |        803        8.03       75.57
         10 |        849        8.49       84.06
         11 |        767        7.67       91.73
         12 |        827        8.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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