Year	MJ/$2011 PPP GDP
1990	6.57921808671548
1991	6.57599867172658
1992	7.32981439713396
1993	7.57160675452808
1994	7.46188624364266
1995	7.52437060542035
1996	7.59511360375873
1997	7.60680621820582
1998	7.07896142825218
1999	7.26956689450832
2000	7.19335811105299
2001	6.91498173223532
2002	6.97035974538896
2003	6.91288321178421
2004	7.22166302571684
2005	6.98490572389329
2006	6.77053995892258
2007	6.86758965433915
2008	6.56153683932961
2009	7.00620014170212
2010	6.9785338767117
2011	5.92409720301858
2012	6.23062437941539
2013	7.45699184943193
2014	7.07470170190163
2015	6.94981928727214