Year	MJ/$2011 PPP GDP
1990	6.39531150136286
1991	6.83131162502743
1992	6.71021495531184
1993	6.83924817998698
1994	6.75458485692514
1995	6.99773530535642
1996	7.04563353819047
1997	6.96785630344751
1998	6.61642754301574
1999	6.2675424944426
2000	6.0016294202769
2001	6.12269972472676
2002	5.9794811525424
2003	5.88412028013888
2004	5.8177509267167
2005	5.72064891425574
2006	5.43640102060255
2007	5.08903144787784
2008	5.21141846798102
2009	5.19743450878757
2010	5.27850945809615
2011	5.23907782687545
2012	5.17906431176072
2013	5.09910519902701
2014	4.74500023199051
2015	4.58220312656261