Feature Request: Support per-zone statistics for Image Resizing

Background here: Will I be able to see billing at a zone level for Image Resizing?

Essentially, I would love to be able to see a breakdown of image resizing requests by zone in the billing statistics graph (below). Currently it just shows ‘All zones’, which is not very useful at all if you have several different zones all using the resizing feature.

I’d like to be able to see which of my zones are triggering the most resize operations, so I can check I’ve set them all up correctly caching-wise, if nothing else.