The bubble sizes in the bubble chart appear to be relative to the radius parameter. This is ok for a single chart, but when creating multiple bubble charts it becomes impossible to compare the bubble sizes across the charts. This is because the largest radius value for each single chart is mapped to the same absolute bubble size.

Is there a way to make the radius value be treated as an absolute size indicator? I know that I then will have to make my own scaling logic to have "nice" bubble sizes, but I can then use the same scaling across all the charts based on the overall largest radius.