Year	MJ/$2011 PPP GDP
1990	3.95388221620407
1991	3.71041823574393
1992	3.63986077257545
1993	3.53063688185436
1994	3.28467528008195
1995	3.50668385966296
1996	3.45693612214209
1997	3.46155127446793
1998	3.4307639700806
1999	3.41540188768735
2000	3.37133214236793
2001	3.51218536138011
2002	3.64021708844071
2003	3.70822557986091
2004	3.67515491609099
2005	3.53651981506678
2006	3.24917653883713
2007	3.11633481101568
2008	3.19045390361605
2009	3.82872188916886
2010	4.18138936186965
2011	4.1842523050426
2012	4.13779727112478
2013	4.15217458735459
2014	4.01155114083803
2015	3.89162926503199