Year	MJ/$2011 PPP GDP
1990	5.88225583504454
1991	5.48624741873564
1992	5.28271961464898
1993	5.28141612018821
1994	5.13012490750797
1995	5.09555443495463
1996	5.22496185415016
1997	5.08534798270389
1998	4.9564622466845
1999	4.74968849363069
2000	4.63529428201804
2001	4.69475690925934
2002	4.58939121057672
2003	4.59786268049527
2004	4.5769511938077
2005	4.51146599828359
2006	4.471228450447
2007	4.0991916760957
2008	4.09940667751472
2009	4.06809836556386
2010	4.11533555707247
2011	3.77303671283679
2012	3.77181071456031
2013	3.83175597713428
2014	3.64039942390138
2015	3.6030941551038