Year	MJ/$2011 PPP GDP
1990	5.04207757414802
1991	4.87915848889042
1992	5.12278044353619
1993	5.03980802905729
1994	5.00649351164901
1995	5.0319803953226
1996	5.05184051316062
1997	5.19441881476755
1998	5.1793652675167
1999	5.13385553552597
2000	5.29197211038152
2001	5.46931775432753
2002	5.51775726238941
2003	5.02500326872557
2004	5.07916967138597
2005	4.9061381021133
2006	4.80046831767487
2007	4.90796032815805
2008	4.94131840019323
2009	5.78605516926597
2010	5.66028067982968
2011	5.88999398875465
2012	5.59665678870864
2013	4.98734553924782
2014	5.05682074257146
2015	4.97676680174836