International Energy Agency data, via SourceOECD
• http://www.lib.umn.edu/cgi-bin/oecd.cgi

SourceOECD is the online publications portal of the 30-country Organisation for Economic Co-operation and Development. It contains the full text of all OECD publications and statistical databases. Statistics generally cover 1960 - present; some earlier years may be available. Statistics also focus primarily on member countries. See Getting Started With SourceOECD for help using SourceOECD.