Year	MJ/$2011 PPP GDP
1990	4.8385166193373
1991	4.85965389022896
1992	5.06362581798896
1993	4.95497669941211
1994	5.08659491084176
1995	5.09057811674976
1996	4.97380856867206
1997	4.97647559138116
1998	5.14929918880025
1999	5.12771056073635
2000	5.08219045613528
2001	4.72941697238168
2002	4.62542723532896
2003	4.41767017844206
2004	4.1271305760466
2005	3.94546367956466
2006	3.72148508541311
2007	3.49753743597932
2008	3.48479236555124
2009	3.28042498088548
2010	3.2242384393983
2011	3.13116202954533
2012	3.12177352510576
2013	3.01986107421038
2014	3.0344437814325
2015	3.12231563959038