Green Flying Panda uses indexes for performance reasons. Reports queries would be too much expensive to build on request. That's why there might not be up to date.
It's up to you and your developers to define what's the best strategy to rebuild them, so the information can still be very relevant but without the need to every single day spend server resources updating data to the latest point.
If your store is more than a year old, you probably already can have a pretty good idea of your store evolution without requiring daily reports updates.
If your dev team decided to rebuild reports and meta information on a schedule, most likely this page won't be very useful to you, other than get info.
I, however, for any reason you need to update some information to the most recent state, you can hit the "Force Rebuild" link in the last column.
It's recommended updating indexes from the command line.