Year kg of oil equivalent (constant 2011 PPP) 1990 215.388601741739 1991 213.599921337406 1992 208.292820951646 1993 203.54380039331 1994 196.301402074312 1995 194.899233575916 1996 188.697211461449 1997 181.445295775717 1998 177.447152069648 1999 174.397748189834 2000 168.713840804937 2001 166.739522914121 2002 165.15444286139 2003 166.570185736813 2004 165.792452940377 2005 163.477548866391 2006 159.913908118873 2007 154.408898820775 2008 151.223253941778 2009 151.073029197829 2010 150.90759689396 2011 148.897276552749 2012 146.487687967001 2013 142.290666775914 2014 138.488055693728