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

 crash date |
      (day) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        346        3.46        3.46
          2 |        327        3.27        6.73
          3 |        402        4.02       10.75
          4 |        348        3.48       14.23
          5 |        351        3.51       17.74
          6 |        321        3.21       20.95
          7 |        329        3.29       24.24
          8 |        303        3.03       27.27
          9 |        314        3.14       30.41
         10 |        308        3.08       33.49
         11 |        332        3.32       36.81
         12 |        361        3.61       40.42
         13 |        335        3.35       43.77
         14 |        384        3.84       47.61
         15 |        350        3.50       51.11
         16 |        334        3.34       54.45
         17 |        376        3.76       58.21
         18 |        327        3.27       61.48
         19 |        345        3.45       64.93
         20 |        301        3.01       67.94
         21 |        354        3.54       71.48
         22 |        277        2.77       74.25
         23 |        282        2.82       77.07
         24 |        302        3.02       80.09
         25 |        359        3.59       83.68
         26 |        348        3.48       87.16
         27 |        262        2.62       89.78
         28 |        299        2.99       92.77
         29 |        256        2.56       95.33
         30 |        268        2.68       98.01
         31 |        199        1.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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