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

      First |
Accident,et |
    c-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,191       41.91       41.91
          1 |        431        4.31       46.22
          2 |        419        4.19       50.41
          3 |        409        4.09       54.50
          4 |        426        4.26       58.76
          5 |        415        4.15       62.91
          6 |        419        4.19       67.10
          7 |        421        4.21       71.31
          8 |        464        4.64       75.95
          9 |        436        4.36       80.31
         10 |        424        4.24       84.55
         11 |        381        3.81       88.36
         12 |        384        3.84       92.20
         99 |        780        7.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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