Frequencies for first 10,000 rows of first_mo variable in vehicle dataset :

      First |
Accident,et |
    c-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,072       30.72       30.72
          1 |        537        5.37       36.09
          2 |        474        4.74       40.83
          3 |        546        5.46       46.29
          4 |        539        5.39       51.68
          5 |        509        5.09       56.77
          6 |        531        5.31       62.08
          7 |        488        4.88       66.96
          8 |        517        5.17       72.13
          9 |        537        5.37       77.50
         10 |        548        5.48       82.98
         11 |        497        4.97       87.95
         12 |        463        4.63       92.58
         99 |        742        7.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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