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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        784        7.84        7.84
          2 |        712        7.12       14.96
          3 |        901        9.01       23.97
          4 |        741        7.41       31.38
          5 |        738        7.38       38.76
          6 |        838        8.38       47.14
          7 |        823        8.23       55.37
          8 |        909        9.09       64.46
          9 |        890        8.90       73.36
         10 |        909        9.09       82.45
         11 |        880        8.80       91.25
         12 |        875        8.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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