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

        day |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        333        3.33        3.33
          2 |        340        3.40        6.73
          3 |        297        2.97        9.70
          4 |        362        3.62       13.32
          5 |        326        3.26       16.58
          6 |        350        3.50       20.08
          7 |        330        3.30       23.38
          8 |        321        3.21       26.59
          9 |        321        3.21       29.80
         10 |        327        3.27       33.07
         11 |        308        3.08       36.15
         12 |        364        3.64       39.79
         13 |        312        3.12       42.91
         14 |        354        3.54       46.45
         15 |        381        3.81       50.26
         16 |        337        3.37       53.63
         17 |        312        3.12       56.75
         18 |        323        3.23       59.98
         19 |        321        3.21       63.19
         20 |        334        3.34       66.53
         21 |        338        3.38       69.91
         22 |        308        3.08       72.99
         23 |        318        3.18       76.17
         24 |        317        3.17       79.34
         25 |        354        3.54       82.88
         26 |        343        3.43       86.31
         27 |        301        3.01       89.32
         28 |        310        3.10       92.42
         29 |        271        2.71       95.13
         30 |        294        2.94       98.07
         31 |        176        1.76       99.83
         99 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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