Year	MJ/$2011 PPP GDP
1990	3.68815437778816
1991	3.53480063560281
1992	3.44813463211095
1993	3.50237428212458
1994	3.70319880312232
1995	3.39527146929582
1996	3.14192670549728
1997	3.3774747735584
1998	3.39095900188736
1999	3.3102426341829
2000	3.36491016059516
2001	3.29645038828101
2002	3.50451644904784
2003	3.683285809767
2004	3.71299437495439
2005	3.18390972576634
2006	2.64323231638433
2007	2.72304311275856
2008	2.60812167607831
2009	2.83123969788286
2010	2.95846487291246
2011	3.00317368330817
2012	2.98622960866627
2013	2.8301476718104
2014	2.68322602045109
2015	2.56059973203276