I find this very useful and hope that you will too. Statistics about EU and its relation with rest of the world. I found in particular interesting the ratio of EU population (7%) comparing to the contribution to the world GDP (30%). See abstract below before you click on the heading to see more.
"To celebrate World Statistics Day, Eurostat, the statistical office of the European Union, releases on this day a new publication "The EU in the world - a statistical portrait". This publication paints a picture of the EU in relation to the rest of the world using a range of harmonised European and international statistics. It provides data for the EU, the world total and for the 15 non-EU G-20 countries (Argentina, Australia, Brazil, Canada, China, India, Indonesia, Japan, South Korea, Mexico, Russia, Saudi Arabia, South Africa, Turkey and the United States)." Eurostat, 2010