Year	MJ/$2011 PPP GDP
1990	5.39667843968686
1991	5.63616660537921
1992	6.71178316488029
1993	7.44694577557342
1994	6.76172361393806
1995	6.91038739333786
1996	8.07184378985277
1997	7.23606350461146
1998	7.52669227639751
1999	6.76678151135062
2000	6.37118602129087
2001	6.34844012681882
2002	6.13522719618902
2003	6.62486566917861
2004	6.23090608365457
2005	6.06745556231629
2006	6.04238242060846
2007	5.85474107280801
2008	5.5423582153951
2009	5.18430335405199
2010	5.13013150069655
2011	5.43389673705291
2012	5.17896442229202
2013	4.58879970390997
2014	4.40941814305956
2015	4.22656745707274