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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        812        8.12        8.12
          2 |        833        8.33       16.45
          3 |        840        8.40       24.85
          4 |        895        8.95       33.80
          5 |        910        9.10       42.90
          6 |        910        9.10       52.00
          7 |        869        8.69       60.69
          8 |        874        8.74       69.43
          9 |        813        8.13       77.56
         10 |        786        7.86       85.42
         11 |        730        7.30       92.72
         12 |        728        7.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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