Year	MJ/$2011 PPP GDP
1990	5.63811505759505
1991	5.63179329144264
1992	5.52112510003656
1993	5.53069905922514
1994	5.36536146499181
1995	5.40393391126181
1996	5.47524093657504
1997	5.27347623726392
1998	5.14948928107745
1999	4.96010145073264
2000	4.80493945120531
2001	4.80728358645628
2002	4.73233689229907
2003	4.76205542966783
2004	4.68454260978251
2005	4.59768404529853
2006	4.45759032734686
2007	4.24232046939761
2008	4.19530504404913
2009	4.13269443739804
2010	4.20945006269747
2011	3.97613927074594
2012	3.9634066832696
2013	3.90915768456329
2014	3.69633818229538
2015	3.66189270352503