Year	MJ/$2011 PPP GDP
1990	5.08426590360363
1991	4.89618312623681
1992	4.76012888923799
1993	4.87480852740072
1994	4.53901697459934
1995	4.61848236615853
1996	4.44619007814619
1997	4.38931996202099
1998	4.94207170119612
1999	5.13635011298793
2000	5.30629744186341
2001	5.24005907877658
2002	5.20061505910441
2003	4.97744357298333
2004	5.05196547272123
2005	4.86449491156237
2006	4.71929665046321
2007	4.41681690926246
2008	4.24870196211798
2009	4.38953395143671
2010	4.3418454484607
2011	3.93938633264638
2012	3.85467679444317
2013	3.74705754343888
2014	3.68352932328441
2015	3.52522267437828