Year	MJ/$2011 PPP GDP
1990	5.7749422905125
1991	5.49698394714608
1992	5.79734185228241
1993	5.38431362350993
1994	6.39114117182769
1995	5.76784607175474
1996	6.15997398921109
1997	5.76522137762147
1998	6.05260192196067
1999	6.13673784490986
2000	6.08212707569821
2001	6.08745959433459
2002	7.24908060945083
2003	7.22680843409386
2004	6.50861664057345
2005	5.88795137290256
2006	5.9632336131459
2007	5.07735064160164
2008	5.39372866080764
2009	5.58381819274633
2010	6.30963480621624
2011	5.62295434819513
2012	5.78799850390965
2013	5.37526288713637
2014	5.47351351783036
2015	4.72396108905232