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

      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        768        7.68        7.68
          2 |        735        7.35       15.03
          3 |        773        7.73       22.76
          4 |        825        8.25       31.01
          5 |        947        9.47       40.48
          6 |        915        9.15       49.63
          7 |        841        8.41       58.04
          8 |        899        8.99       67.03
          9 |        848        8.48       75.51
         10 |        914        9.14       84.65
         11 |        763        7.63       92.28
         12 |        772        7.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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