Week 16: Pain at the Pump

[u0875378]

This is really a very nice visualization which is very informative. And I also like the can switch between colors and currencies. The interaction part is very handy, which can show ranking and values when controlling mouse rollover.
I agree with most opinions of the critiquer, especially that adding interactivity options like dragging the axes and filtering option would improve the visualization.
Overall this is a very good visualization and the critique is very appropriate.