Allow Sorting by Hour of Day/Day of Week on Time Parting Reports

We'd like to know and compare average activity throughout the day for two different ways of reaching our site.  Currently, the chart for Hour of Day shows the busiest 15 minute increment in order of activity.  It would be nice if instead, it showed a chart going from 0:00 to 23:45 and showed average activity during those 15 minutes periods in order.  That would be an accurate picture of activity on your site throughout the day and wouldn't require an export to Excel and charting.