Year	MJ/$2011 PPP GDP
1990	4.76764215659633
1991	4.74027942383365
1992	4.7722576139155
1993	4.79945222737651
1994	4.66292978956585
1995	4.73900597461536
1996	4.63592408890109
1997	4.44698407187635
1998	4.42367446869519
1999	4.32568268859601
2000	4.68361053639468
2001	4.5306481756195
2002	4.97369921824731
2003	4.69217288154537
2004	4.44370975718583
2005	4.52282537484118
2006	4.58815924062811
2007	4.86157185799812
2008	4.68544146168792
2009	4.69557909489362
2010	4.41463501838116
2011	4.70337120996083
2012	4.51792017195048
2013	4.26925939156184
2014	4.62007522187844
2015	4.49808095319411