Year	MJ/$2011 PPP GDP
1990	5.69314774356783
1991	5.28864007885425
1992	5.52916985972682
1993	5.53080038796423
1994	5.45152979746735
1995	5.47405109228568
1996	5.22741265880122
1997	5.08528413677514
1998	5.10036168961191
1999	4.91240539921312
2000	5.00352885271775
2001	4.44263807300206
2002	4.15238185678881
2003	3.69581803945415
2004	4.02383026249761
2005	3.69089525126899
2006	3.34961078719202
2007	3.17873406340591
2008	2.95437380762612
2009	2.54358895766294
2010	2.37255250059149
2011	2.26255638045869
2012	2.03635224068446
2013	1.91032018012027
2014	1.96395259538955
2015	2.82641942372024