Year	MJ/$2011 PPP GDP
1990	9.8494686990536
1991	9.14372719139396
1992	8.57359755566463
1993	7.96267913396577
1994	9.13771021026778
1995	8.65298757135856
1996	8.36858451048953
1997	7.7322917014673
1998	7.49640895676543
1999	8.07261928893172
2000	7.17559151319916
2001	7.05788357824151
2002	7.19937333161919
2003	6.49610058379976
2004	6.25097471359366
2005	5.92419867316821
2006	5.78151744106616
2007	5.01336041399279
2008	4.72534465967984
2009	4.73452771108212
2010	4.67527841005156
2011	4.75433506047865
2012	4.17989535198809
2013	4.13358242631442
2014	3.9686332804545
2015	3.95680675257557