Year	MJ/$2011 PPP GDP
1990	5.4390966150615
1991	4.97639131756251
1992	4.67515678215628
1993	4.42726697484486
1994	4.44994520448956
1995	4.64626030192915
1996	4.56540438200189
1997	4.35809556241409
1998	4.34004774245514
1999	4.56906827299307
2000	4.66000419810886
2001	4.63730638645308
2002	5.05808673345645
2003	4.97266769429361
2004	4.98235701768587
2005	4.6031075504488
2006	4.63074898615192
2007	4.30281027914211
2008	4.35285195831845
2009	4.5033185148229
2010	4.2511819557134
2011	4.10057606014049
2012	4.15885335147252
2013	4.17514182389459
2014	4.34415636771924
2015	4.34010162122093