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

 crash date |
    (month) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        801        8.01        8.01
          2 |        698        6.98       14.99
          3 |        895        8.95       23.94
          4 |        843        8.43       32.37
          5 |        852        8.52       40.89
          6 |        864        8.64       49.53
          7 |        836        8.36       57.89
          8 |        898        8.98       66.87
          9 |        809        8.09       74.96
         10 |        883        8.83       83.79
         11 |        825        8.25       92.04
         12 |        796        7.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016