Year	MJ/$2011 PPP GDP
1990	4.03309449954163
1991	4.14515592219809
1992	3.95100461017502
1993	3.77497124072602
1994	3.30585932569725
1995	3.05124244086711
1996	3.1039258642999
1997	2.8838353857475
1998	2.67808781308115
1999	2.7436214267279
2000	2.67090202715237
2001	2.84498967362063
2002	2.98642266553629
2003	3.10087851935326
2004	3.03429146369513
2005	3.52900942742506
2006	3.48058171998439
2007	3.22668968777116
2008	2.84943034888676
2009	3.15224340849755
2010	3.16290724210901
2011	3.34468058702648
2012	2.84005943938041
2013	2.8046185551502
2014	2.69585812034593
2015	2.77272582273854