Here's a first cut...I couldn't figure out how to bottom justify the inner circle (External Debt), though. (I'm sure someone will chime in)
I used a dual-axis circle chart and edited the axis for each measure to use a fixed (0) range.
eBI Systems, LLC
overlapping_debt_bubbles_mark.twbx 204.4 KB
The key piece I was missing was setting the axis for each measure to use a fixed (0) range.
And, as you mentioned, the 2nd key piece is how to bottom justify the marks.
Does anyone have any ideas on an easy way to "bottom justify" the marks so that the overlapping circles will line up exactly at the bottom?
(Am I missing something really easy?)