Year	MJ/$2011 PPP GDP
1990	9.14713830486354
1991	9.06805900610824
1992	8.85456041001116
1993	8.67138074249069
1994	8.39059661035987
1995	8.3407459711565
1996	8.0747810758536
1997	7.79261580996907
1998	7.65459813094808
1999	7.53581573125136
2000	7.29917381696917
2001	7.20877635774023
2002	7.14966661043875
2003	7.18501257902627
2004	7.11320346731566
2005	6.98803915707961
2006	6.81362650369723
2007	6.57245151890448
2008	6.42106057584562
2009	6.39780195765413
2010	6.36712389266787
2011	6.28408735554476
2012	6.1893822849926
2013	6.01461840666887
2014	5.73915305168799
2015	5.54262948860516