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

 crash date |
      (day) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        321        3.21        3.21
          2 |        294        2.94        6.15
          3 |        327        3.27        9.42
          4 |        344        3.44       12.86
          5 |        336        3.36       16.22
          6 |        271        2.71       18.93
          7 |        386        3.86       22.79
          8 |        320        3.20       25.99
          9 |        338        3.38       29.37
         10 |        316        3.16       32.53
         11 |        269        2.69       35.22
         12 |        343        3.43       38.65
         13 |        333        3.33       41.98
         14 |        307        3.07       45.05
         15 |        309        3.09       48.14
         16 |        366        3.66       51.80
         17 |        329        3.29       55.09
         18 |        329        3.29       58.38
         19 |        311        3.11       61.49
         20 |        333        3.33       64.82
         21 |        401        4.01       68.83
         22 |        340        3.40       72.23
         23 |        310        3.10       75.33
         24 |        355        3.55       78.88
         25 |        327        3.27       82.15
         26 |        319        3.19       85.34
         27 |        299        2.99       88.33
         28 |        349        3.49       91.82
         29 |        332        3.32       95.14
         30 |        276        2.76       97.90
         31 |        210        2.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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