Year	MJ/$2011 PPP GDP
1990	6.07179066302967
1991	6.05232824515659
1992	5.9715291734636
1993	5.97749867572826
1994	6.00782924480076
1995	6.0247883379258
1996	5.86332078002856
1997	5.8147296923828
1998	5.86522351328896
1999	5.9302769936671
2000	5.80117156787848
2001	5.81089381249918
2002	5.83848858851793
2003	5.70142557096357
2004	5.61709722998179
2005	5.46547035881894
2006	5.36270726745173
2007	5.20519265727012
2008	5.21119349896705
2009	5.27663433112805
2010	5.11804779355812
2011	4.95027766223373
2012	4.96723608639794
2013	4.81596616645479
2014	4.7731634402934
2015	4.63048360619265