That is plotting cigarette tax revenue as a percentage of GDP (vertical axis) against the percentage of the pricer of a packet of cigarettes that is tax (horizontal axis).
The Olympics are in full swing, and we were pleased to learn that the organizers of the 2012 Summer Games installed seven vertical axis qr5 wind turbines at the Olympic Park in London.
Over the past five years the Russians developed a prototype of a vertical axis wind turbine with an innovative airfoil that enables the turbine to self-start.