Year	MJ/$2011 PPP GDP
1990	6.75410553190073
1991	7.18093832050159
1992	7.37255570558108
1993	7.28320273500235
1994	7.12296481023482
1995	6.91831626980421
1996	6.62522623489747
1997	6.66955223189538
1998	6.46659639736284
1999	6.12811725525196
2000	6.03204514510061
2001	5.90969636267105
2002	6.07915379574644
2003	6.0687274446717
2004	6.02580178057001
2005	5.87210845889532
2006	5.5853785200139
2007	5.39302280603973
2008	5.30204681888917
2009	5.48451875860941
2010	5.36026843686867
2011	5.22040859065255
2012	5.31334529435286
2013	5.44210322153233
2014	5.24578644274729
2015	5.42963317938131