Year	MJ/$2011 PPP GDP
1990	4.66658475728304
1991	4.6680588935372
1992	4.60150737209559
1993	4.48538969073223
1994	4.59263752018192
1995	4.64533504900821
1996	4.91637252444985
1997	5.14979401047889
1998	5.22762589811727
1999	5.33697749134499
2000	5.23110805252751
2001	5.20404374235306
2002	5.42141503579522
2003	5.47901367956858
2004	5.5703891853125
2005	5.49696168267545
2006	5.3399815219906
2007	5.27934504523349
2008	5.33117573412338
2009	5.3509451466981
2010	5.44586715381827
2011	5.39445643905962
2012	5.39380430327444
2013	5.6480727750378
2014	5.55649446817718
2015	5.41195825241376