Year	MJ/$2011 PPP GDP
1990	9.4731558828069
1991	9.66864845081628
1992	9.64171712304011
1993	9.74455511611268
1994	9.50999973554786
1995	9.48102487946744
1996	9.34040583014234
1997	9.37095221273361
1998	9.42810224934135
1999	9.53701510191902
2000	9.34893095556745
2001	9.3194493312713
2002	9.30023397721458
2003	9.02607992520512
2004	7.99813019131477
2005	7.70876618879038
2006	7.39221247266096
2007	7.19517092008919
2008	6.99887359915871
2009	6.60020086840229
2010	6.50506352361862
2011	6.49924539761263
2012	6.43525809915871
2013	6.10870840396499
2014	5.87362241481977
2015	5.81008703037854