Year	MJ/$2011 PPP GDP
1990	3.6507748154677
1991	3.44627704348403
1992	3.20419584662023
1993	2.81070085309267
1994	3.69989618387282
1995	3.37630928337903
1996	3.21544332028709
1997	5.8681070605692
1998	5.9667078546838
1999	5.97117577431317
2000	5.65295535964413
2001	5.43790671216557
2002	5.46133826222596
2003	5.26688261163063
2004	5.04413411141286
2005	4.97918387949902
2006	5.46179654136927
2007	5.39007809138912
2008	5.36286637072717
2009	5.14810895347729
2010	4.79961364646869
2011	4.69875733708637
2012	4.8682854011814
2013	4.88539094095565
2014	4.99541138615704
2015	4.61164581757375