Year	MJ/$2011 PPP GDP
1990	3.52000611129493
1991	3.55202547453945
1992	3.50060377419297
1993	3.51223317916802
1994	3.39483691393624
1995	3.58233166833718
1996	3.53375844904063
1997	3.51939810474354
1998	3.56042628192269
1999	3.5597330299476
2000	3.49767220852059
2001	3.44831648445109
2002	3.46387707556309
2003	3.62419010666377
2004	3.59250605048598
2005	3.62671662151195
2006	3.52295333028145
2007	3.46054579597713
2008	3.451213100548
2009	3.40949303056787
2010	3.43437098196747
2011	3.30129076178886
2012	3.26278347669821
2013	3.19857425031208
2014	2.9779315789523
2015	3.07219897115511