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 |      5,480       54.80       54.80
          1 |        344        3.44       58.24
          2 |        310        3.10       61.34
          3 |        324        3.24       64.58
          4 |        315        3.15       67.73
          5 |        338        3.38       71.11
          6 |        372        3.72       74.83
          7 |        372        3.72       78.55
          8 |        358        3.58       82.13
          9 |        364        3.64       85.77
         10 |        353        3.53       89.30
         11 |        291        2.91       92.21
         12 |        313        3.13       95.34
         98 |         61        0.61       95.95
         99 |        405        4.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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