Year	MJ/$2011 PPP GDP
1990	4.17820365761834
1991	4.08579766886185
1992	4.15735799862967
1993	4.17180204979129
1994	4.20389879583524
1995	4.15391386977108
1996	4.16756227170265
1997	4.14657446473474
1998	4.20262582476149
1999	4.09350710568955
2000	4.14813433871309
2001	4.11848882476221
2002	4.0078734449781
2003	3.89784140224975
2004	3.78205134836577
2005	3.82839470915873
2006	3.62071593897703
2007	3.50479208743403
2008	3.53977016902536
2009	3.57914010285426
2010	3.55173848011245
2011	3.78601624318934
2012	4.05450953297594
2013	3.68200428945409
2014	3.70620090115697
2015	3.72312234989223