Book completion status not returning as complete when selected as User Module Outline Stat

Using user module outline stats returns a blank field in the reports. Using user module actions can return a number, but I think this is the number of pages viewed which is not always a useful indicator as students may have started the book and returned to the beginning when prompted, meaning they can have more pages viewed than the amount of pages within the lesson, yet still have not completed it.

It should be able to be based off of completion which the course creator assigns the criteria for.