The data may be interesting to some people, but what intrigued me was the data visualization techniques. I thought the groupings were good, that the use of colo

The data may be interesting to some people, but what intrigued me was the data visualization techniques. I thought the groupings were good, that the use of color and of line widths was helpful, and that the ways the lines curved actually HELPED to locate them (as compared with straight lines or a simpler curve). However, I think the left and right sides should have been represented by two different curves (perhaps the base of a parabola) that did NOT meet to make a full circle -- because until reading the details I didn't realize that the left and right sides of what appeared to be a single circle were essentially unrelated. All in all, a nice visualization.