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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        360        3.60        3.60
          2 |        326        3.26        6.86
          3 |        340        3.40       10.26
          4 |        379        3.79       14.05
          5 |        321        3.21       17.26
          6 |        333        3.33       20.59
          7 |        288        2.88       23.47
          8 |        334        3.34       26.81
          9 |        331        3.31       30.12
         10 |        367        3.67       33.79
         11 |        354        3.54       37.33
         12 |        294        2.94       40.27
         13 |        298        2.98       43.25
         14 |        332        3.32       46.57
         15 |        357        3.57       50.14
         16 |        332        3.32       53.46
         17 |        358        3.58       57.04
         18 |        332        3.32       60.36
         19 |        292        2.92       63.28
         20 |        315        3.15       66.43
         21 |        292        2.92       69.35
         22 |        352        3.52       72.87
         23 |        330        3.30       76.17
         24 |        298        2.98       79.15
         25 |        330        3.30       82.45
         26 |        304        3.04       85.49
         27 |        324        3.24       88.73
         28 |        313        3.13       91.86
         29 |        329        3.29       95.15
         30 |        293        2.93       98.08
         31 |        186        1.86       99.94
         99 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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