Year	MJ/$2011 PPP GDP
1990	4.43594656084109
1991	4.95170408399831
1992	5.06451761075823
1993	5.18975413521614
1994	5.53589360104653
1995	5.6825140673398
1996	5.79365650806964
1997	5.38153896662109
1998	5.36388585744374
1999	5.3480620043268
2000	5.19157774103286
2001	4.89224435680977
2002	5.36717217479156
2003	5.24682753335184
2004	5.16215986919639
2005	4.99952495592504
2006	5.42223221223634
2007	5.14881042082976
2008	4.88279507127368
2009	5.06013737685181
2010	5.13230623150782
2011	5.1681820234751
2012	5.1470648687324
2013	5.28749528683613
2014	5.18431332833179
2015	5.36685845365726