Year	MJ/$2011 PPP GDP
1990	7.58121453229711
1991	7.54989060965449
1992	7.43386022801507
1993	7.38257229845247
1994	7.22315151268466
1995	7.18513529720306
1996	7.09222377525642
1997	6.88202449171211
1998	6.74619382979474
1999	6.65007959576099
2000	6.4963887291055
2001	6.41725043824809
2002	6.37329372302393
2003	6.36427758673003
2004	6.30311589123268
2005	6.18529596983382
2006	6.03941998467598
2007	5.88460136599105
2008	5.79495714757339
2009	5.77844507206833
2010	5.79565960703675
2011	5.66192215230658
2012	5.58584587487358
2013	5.48614953092519
2014	5.28379256270226
2015	5.13116306825626