Source: C.A. Smith, R.D. Belles, and A.J. Simon. March 2011. Estimated International Energy Flows 2007 (3.9MB PDF). Lawrence Livermore National Laboratory. Page 129.
Data extracted from the diagram by Glen Newton.
NB: As this data was hand-extracted, it may contain errors.
Built with Mike Bostock's
This page borrows heavily from Mike Bostock's page.