Year	MJ/$2011 PPP GDP
1990	2.6637700068681
1991	2.59222915317524
1992	2.85931931064022
1993	2.91044914910978
1994	2.48752520570813
1995	2.59855913567087
1996	2.61118896564426
1997	2.49995325227944
1998	2.56989039967939
1999	2.74684119721728
2000	2.81249164698433
2001	2.9559906799691
2002	3.57723664520701
2003	4.1130736280245
2004	4.74072880930046
2005	5.27102533816482
2006	6.15254753232273
2007	6.48577446706535
2008	7.37145739344094
2009	8.05371824120078
2010	8.4479347256629
2011	6.35223391704311
2012	5.34823726003515
2013	7.39174970299041
2014	6.69588543307003
2015	6.53637696906845