It shows it at the bottom of each stack, but there’s no way to show it at the top. Note that you don’t need to scroll to see it at the bottom — it’s always visible.

If you’d like to have the option for it to show at the top, I would add it as a feature request in the #show-and-tell:product-suggestions topic.

Ok - Thanks - I see it now (doh!). Yes, a suggestion to improve/control how you to see the number of items in the stack would be useful.