Year kg of oil equivalent (constant 2011 PPP) 1990 160.346257137463 1991 166.164729840856 1992 168.057388929357 1993 166.459393200663 1994 164.005014702093 1995 158.860589560819 1996 158.734343072375 1997 162.475122743418 1998 158.973383161832 1999 156.823697831197 2000 157.649075379297 2001 152.481377133421 2002 145.854459320425 2003 137.684553855552 2004 135.673214144277 2005 128.276036122764 2006 124.783993500356 2007 122.485649193305 2008 125.657402970676 2009 126.896239694275 2010 131.080964898484 2011 127.603014210213 2012 130.942833974445 2013 128.713520352176 2014 131.758093633688 2015 126.350229386145