Year kg of oil equivalent (constant 2011 PPP) 1991 174.385203919632 1992 164.875648050718 1993 169.625125381105 1994 159.586431580882 1995 163.31444888539 1996 167.563049629652 1997 158.948269626468 1998 150.623880957416 1999 144.890527804465 2000 136.307126680497 2001 134.417418532718 2002 128.610349259082 2003 126.43259219371 2004 120.097380390962 2005 121.575451817383 2006 116.123776125496 2007 113.106549771065 2008 111.054652238864 2009 111.580656841314 2010 114.658718733322 2011 109.465362017412 2012 104.740432242792 2013 98.2619045423294 2014 95.7862343536686 2015 97.0103847239389