Year	MJ/$2011 PPP GDP
1990	3.25933897436467
1991	3.33955881647516
1992	3.3558528830457
1993	3.27596447422759
1994	3.26410535997888
1995	3.20213897041298
1996	3.24526631437747
1997	3.2278108907479
1998	3.1734381750315
1999	3.12769448752848
2000	2.96894993439049
2001	3.10825003524658
2002	3.02558323182667
2003	3.03659108610105
2004	2.96337422864257
2005	2.85974756306994
2006	2.87057924912329
2007	2.62110109298994
2008	2.66321554632083
2009	2.74125718880604
2010	2.58676090834769
2011	2.46010977321302
2012	2.45680636313638
2013	2.51924696961273
2014	2.26045914555154
2015	2.19457627268498