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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        786        7.86        7.86
          2 |        756        7.56       15.42
          3 |        874        8.74       24.16
          4 |        870        8.70       32.86
          5 |        894        8.94       41.80
          6 |        817        8.17       49.97
          7 |        781        7.81       57.78
          8 |        868        8.68       66.46
          9 |        806        8.06       74.52
         10 |        850        8.50       83.02
         11 |        821        8.21       91.23
         12 |        877        8.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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