Year	MJ/$2011 PPP GDP
1990	4.00502794252419
1991	4.02067849880058
1992	4.07662174358413
1993	3.92401342928199
1994	4.15975840935785
1995	3.92349844492876
1996	3.8302313796187
1997	4.05404713151977
1998	3.97500079670044
1999	3.76864225791933
2000	3.85200942885274
2001	3.91955463360246
2002	4.11328713513886
2003	4.01451805882671
2004	4.0019433717234
2005	3.80156899744901
2006	3.21215282216881
2007	3.40782978907647
2008	3.57140318590438
2009	3.88563915082463
2010	3.73121973828459
2011	3.76347586948943
2012	3.8179410018327
2013	3.61692366360996
2014	3.50312925819027
2015	3.58604838368407