Year	MJ/$2011 PPP GDP
1990	6.55520781091876
1991	6.56320298059174
1992	6.51873305710839
1993	6.53539954612688
1994	6.45578538700984
1995	6.41682710021743
1996	6.41867719840309
1997	6.24730512643595
1998	6.11579327678337
1999	6.02757056643637
2000	5.91937119020521
2001	5.83479771444648
2002	5.78840451278365
2003	5.73068247268975
2004	5.65432950777553
2005	5.51756175352315
2006	5.36547975606257
2007	5.24901816080364
2008	5.18504206586132
2009	5.13815945629048
2010	5.18006738404274
2011	4.9716414294437
2012	4.89185489591823
2013	4.84696978575768
2014	4.71054509571083
2015	4.59883981655268