Year	MJ/$2011 PPP GDP
1990	7.47166306218471
1991	7.79763042209809
1992	7.5405720820832
1993	7.69369311222495
1994	7.89938171154588
1995	7.69023404413366
1996	7.75089245774825
1997	7.33865723389173
1998	7.16628923642844
1999	6.73238861141452
2000	6.09563863539535
2001	6.377362765858
2002	6.40261416430065
2003	6.11265644419824
2004	6.0875819086828
2005	5.80596463284427
2006	5.39946419749873
2007	5.20635747891381
2008	5.18758724019545
2009	5.00855165613748
2010	5.2976518915606
2011	5.0524539668446
2012	5.09959290268781
2013	4.96140577729231
2014	4.71380497784354
2015	4.26906119402757