Year	MJ/$2011 PPP GDP
1990	4.55520199183222
1991	4.99826799746628
1992	4.91181602932189
1993	4.80299254909667
1994	5.01951871068772
1995	4.53022455196641
1996	4.53337354611301
1997	4.07354197853359
1998	3.54738516961013
1999	3.74190114410288
2000	3.81710455133955
2001	4.18358714196442
2002	3.66378845246342
2003	3.92002822556527
2004	4.49276521655941
2005	3.74905293791795
2006	3.98972704009598
2007	3.70426433688409
2008	3.18766903546565
2009	2.59604832483752
2010	3.27409529542282
2011	3.24050914354992
2012	3.0394940061968
2013	3.26583736383248
2014	3.11630151834072
2015	4.85386471553695