It's hard to say what's missing. It's a difficult question to answer. I would repeat some of the points you raised, such as knowing how long a person on average will spend in pretrial custody.
I think, importantly, we talked about the culture of adjournment. That and the question of who is responsible for that have been the subject of some discussion here. It's a difficult debate to engage in. I think it misses the issue. Instead of pointing fingers, we should be looking at why a case is being adjourned. Is it because of a lack of court resources? Is it to find housing? Is it to find treatment? Is it defence unavailability or Crown unavailability? That can help us focus on where we can eliminate one of the barriers to accessing justice—that being the right to reasonable bail in a reasonable time.