Year	MJ/$2011 PPP GDP
1990	6.56355741532174
1991	6.56508722417646
1992	6.50995897855132
1993	6.5126324172248
1994	6.42682042122508
1995	6.40780990428342
1996	6.39641886598895
1997	6.22862719751183
1998	6.07920913315321
1999	5.99014785050452
2000	5.88333980636941
2001	5.7913359441324
2002	5.73368828000909
2003	5.69141128374317
2004	5.61087984261272
2005	5.49117264466189
2006	5.32987232894212
2007	5.21458698268552
2008	5.13459357277465
2009	5.09016724459049
2010	5.10636097498225
2011	4.91473343109211
2012	4.81935864785289
2013	4.78108840390433
2014	4.60538308845371
2015	4.48628586374319