Year	MJ/$2011 PPP GDP
1990	4.02577440487284
1991	4.07209710690875
1992	4.10964221471922
1993	3.98275282714049
1994	4.10586133938804
1995	4.17985313036177
1996	4.01105045274452
1997	4.11132277964594
1998	4.14057458100716
1999	4.15472036920402
2000	4.13692493741628
2001	4.08164495917042
2002	4.0856015521387
2003	4.09567991257915
2004	4.14303176854266
2005	4.07854540469411
2006	3.91167273563527
2007	3.82313988757583
2008	3.65607135062118
2009	3.48573641957058
2010	3.48253024522595
2011	3.46177010181717
2012	3.54887506097597
2013	3.36781364837409
2014	3.30806663085961
2015	3.3273590424132