Year kg of oil equivalent (constant 2011 PPP) 1990 316.075174732448 1991 317.483675869789 1992 360.320578575378 1993 341.12852063204 1994 310.048518663094 1995 315.165917393071 1996 284.377099351389 1997 274.197894749549 1998 272.709837289319 1999 293.229443177007 2000 285.936128794559 2001 281.118985720464 2002 303.145921688633 2003 349.27236589075 2004 362.294271894687 2005 403.24123194805 2006 427.673299329413 2007 435.061779731031 2008 490.999024659041 2009 446.649790878698 2010 386.372373861703 2011 366.703901328133 2012 331.440825053198 2013 339.279541498618