Year	MJ/$2011 PPP GDP
1990	7.50756669416874
1991	7.3551856651229
1992	7.72055096010217
1993	8.14506770845545
1994	7.95156445444713
1995	8.00087219669873
1996	8.11043944300803
1997	8.3483209422122
1998	8.08421696777499
1999	8.07359349038031
2000	8.07369328605063
2001	7.84323947161692
2002	7.59264633207729
2003	7.52664322625046
2004	7.37233097560174
2005	7.16080966104956
2006	6.92000939279806
2007	6.82262232071621
2008	6.78036414200619
2009	6.79668710182169
2010	6.95979785009228
2011	6.99386853595585
2012	6.9152461219048
2013	6.72959855828112
2014	6.62553280898562
2015	6.54805337164954