Year	MJ/$2011 PPP GDP
1990	4.80277832334301
1991	5.40923063551117
1992	5.47731171188343
1993	5.38958398548126
1994	4.90963527456795
1995	4.83656303194294
1996	4.86524705311517
1997	5.27605481875812
1998	5.41374248680777
1999	5.1669541990239
2000	5.41281799476531
2001	5.60410233693281
2002	5.49639183773907
2003	5.56657375108045
2004	5.60613957549311
2005	5.77325258814497
2006	5.49788571414464
2007	5.66366855986573
2008	5.64757100865422
2009	5.44861746893875
2010	5.17775710479189
2011	5.12751727114068
2012	4.94677567651701
2013	5.32762479195132
2014	5.13496071863633
2015	4.68220513581964