Year	MJ/$2011 PPP GDP
1990	3.12788003924137
1991	3.03397148787357
1992	2.84531880623019
1993	2.8241170270284
1994	2.5895934193456
1995	2.6616056685211
1996	3.17826427314124
1997	3.12066021688999
1998	2.81701010652567
1999	4.21269318370847
2000	3.97687664697805
2001	4.21616379242558
2002	4.15133039092376
2003	4.10132389038641
2004	3.28839551819136
2005	3.12298117437259
2006	2.69943826298974
2007	3.75581437833942
2008	3.51094328316485
2009	3.89468601079204
2010	3.87288102243554
2011	3.9926736630698
2012	3.69077503512102
2013	3.49837468135193
2014	4.29801387719196
2015	3.86556805462456