How to tell which newsletters are opened

I was wondering if there is a way to see or print a report on which e-newsletters have been opened and by who. I know that on the dashboard you can view the members and see how many letters they opened and the number that was sent. But I can't see which ones were opened.

This would be helpful to know which ones were opened so I can see what time those were opened and by who, so I can adjust the time I send and possible the content or description in order to have a better open rate. Any Ideas?