Year kg of oil equivalent (constant 2011 PPP) 2005 148.451642758087 2006 150.048859391212 2007 141.736335481887 2008 142.038590203856 2009 120.290953755867 2010 135.258046419577 2011 125.44724086308 2012 121.693867827074 2013 108.609145450987 2014 103.960513433248