Adding a date parameter to the Reports options within the Email Campaigns would allow for better recurring delivery reporting.  Instead of a lump sum of data, stake holder would be able to then see an email message (or variant) performance during a specific period of time.

Example: Report = Message performance report

Instead of seeing all clicks since the first date the recurring email message was sent, I could choose "1/1/16-1/31/16" and see a snapshot for the month of January, thereby comparing to other messages during that same time.