It reveals the countries that pay into the EU budget, and those that receive most from it. The size of the country represents the amount respectively payed in, or received. The colours represent the perceived economic prosperity of each state - the colder the colour - the more prosperous the state.
Underneath there is a breakdown of the net benefits from the budget as a percentage of the national GDP.
In Benjamin's words:
"The Eurozone crisis has made monetary issues the focal point of political debate about the nature of the European Union, not just within members of the common currency but across the 27 states that constitute the EU. Discussions about emergency bailouts and transfers to support struggling economies have distorted the public perception of the costs and benefits of the Union.
Despite claims of the high costs of the EU, its overall budget represents approximately just 1 per cent of the gross national income (GNI) of all member states. Payments into the EU budget from a country should also be seen in comparison to payments that countries receive from the EU. The largest contributors, France and Germany, are also those in receipt of the largest payments from the EU budget."