Sorting by day of the week

Hi,
I have 3 years daily web visitor data and i would like to view which days of the week have more visitors. I try to clean the data and used the “groupby” node and manage to view by year/ week of the year/ day of the week but it is sorted in a way that shows all the traffice for day 1 of all the weeks before it moves on to the 2nd day of the week .
I want to sort it by week and day as follows
Week 1 day 1, 2, 3, 4, 5, 6, 7
Week 2 day 1, 2, 3, 4, 5, 6, 7
sample data below.

I currently have this table
Year /Day of week/ Week of year/ Sum(Visitors)
2015 1 1 67
2015 1 2 73
2015 1 3 86
2015 1 4 78
2015 1 5 88
2015 1 6 333
2015 1 7 237
2015 1 8 108
2015 1 9 185
2015 1 10 97

I want to sort it this way
Year/ Day of week/ Week of year/ Sum(Visitors)
2015 1 1 67
2015 2 1 73
2015 3 1 86
2015 4 1 78
2015 5 1 88
2015 6 1 333
2015 7 1 237
2015 1 2 89
2015 2 2 434
2015 3 2 189

Thank you in advance

The Sorter node should be able to do this. Select the week column as the first sort then the day of week column as the second sort.

Steve

It worked perfectly thank you very much.
One more related quastion. the sorter works perfectly for number values but what if i want sort column with string values it sorts them by spellng A-Z or Z-A but
What if i want to sort instad using my own priority (Ex, Morning, Day, and Evening) ?
Thank you

Best i can think of is that you use a Rule Engine to add a sort column, e.g Morning gives , afternoon 2 etc, then sort on that

Steve