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

    date of |
      first |
     crash, |
 suspension |
         or |
 conviction |
    (month) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,048       60.48       60.48
          1 |        316        3.16       63.64
          2 |        294        2.94       66.58
          3 |        291        2.91       69.49
          4 |        312        3.12       72.61
          5 |        295        2.95       75.56
          6 |        296        2.96       78.52
          7 |        286        2.86       81.38
          8 |        325        3.25       84.63
          9 |        285        2.85       87.48
         10 |        274        2.74       90.22
         11 |        276        2.76       92.98
         12 |        264        2.64       95.62
         98 |         69        0.69       96.31
         99 |        369        3.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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