Year	MJ/$2011 PPP GDP
1990	2.03170242762707
1991	2.01775802555254
1992	1.97701056319918
1993	2.02798301087683
1994	2.1382698385093
1995	2.59030727125616
1996	2.39815836511511
1997	2.50200629230846
1998	2.30657934041965
1999	2.34885713784805
2000	2.89472872461379
2001	3.07903580287291
2002	2.94377967054369
2003	3.04864303227417
2004	2.87242158955408
2005	2.92558702404451
2006	2.80698639898426
2007	3.38152263741841
2008	2.73415155723378
2009	2.79044860448591
2010	2.87092147158195
2011	2.77419872082779
2012	2.9078230234509
2013	2.8375656274421
2014	2.78269002473464
2015	3.60851711236742