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

DAY OF WEEK |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,566       15.66       15.66
          2 |      1,266       12.66       28.32
          3 |      1,208       12.08       40.40
          4 |      1,254       12.54       52.94
          5 |      1,322       13.22       66.16
          6 |      1,571       15.71       81.87
          7 |      1,806       18.06       99.93
          9 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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