Year	MJ/$2011 PPP GDP
1990	4.43380112740207
1991	4.39323476107034
1992	4.37977262025862
1993	4.24729372185771
1994	4.27724743232583
1995	4.2666903276371
1996	4.29115719614717
1997	4.23296832790394
1998	4.27236195768353
1999	4.30762776532437
2000	4.19525586268399
2001	4.22882239393698
2002	4.29583653396387
2003	4.32397548678037
2004	4.24377814787315
2005	4.21142806505888
2006	4.16929725221402
2007	4.00451528728713
2008	3.98625484132974
2009	4.03372634216198
2010	4.00736336502953
2011	3.90343250706391
2012	3.95372313406082
2013	3.91614916751333
2014	3.93334705965172
2015	3.82034754632604