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 |      5,311       53.11       53.11
          1 |        308        3.08       56.19
          2 |        315        3.15       59.34
          3 |        380        3.80       63.14
          4 |        340        3.40       66.54
          5 |        356        3.56       70.10
          6 |        365        3.65       73.75
          7 |        352        3.52       77.27
          8 |        359        3.59       80.86
          9 |        361        3.61       84.47
         10 |        398        3.98       88.45
         11 |        316        3.16       91.61
         12 |        305        3.05       94.66
         98 |         51        0.51       95.17
         99 |        483        4.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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