I agree with reader Craig N.'s assessment that the "visualization" applied to this data made it even more difficult to understand than just the data table. Much of this is due to failing the self-sufficiency test. There is no graphical element on this chart that can stand on its own without the support of the data itself.
The chart depicts royalty payments to music artists after the Digital Economy Act passed in the UK. There are a few even larger bubbles at the bottom of the chart including one that is so large as to overstep the borders of the chart.