Year	MJ/$2011 PPP GDP
1990	6.30177746407674
1991	5.87135022247447
1992	5.99958356539197
1993	6.02752651851141
1994	5.96479880908461
1995	6.56021829285438
1996	6.53945023646203
1997	6.50347991668768
1998	6.37726344957042
1999	6.30189611061276
2000	6.38808430378336
2001	6.40117790259562
2002	6.41689587801395
2003	6.51855576268492
2004	6.25448948241665
2005	6.15799752259618
2006	6.19471082310971
2007	6.12095130594996
2008	5.94268826106076
2009	5.80918757870231
2010	5.77447751892032
2011	5.61166871207896
2012	5.8299326810739
2013	5.96317232543689
2014	6.10971019211753
2015	5.9424209274978