I have state polygon data that has a column of the number of silver mines in each state. I turned the polygons into proportional symbols. I have a second state polygon layer that has a column of the number of gold mines in each state. I also turned this layer into a proportional symbol layer. However the gold and the silver proportion circles are stacked because they are display on the polygon centroid. Is there a way to force them to stand side by side without having to move the polygon centroid?