Year	MJ/$2011 PPP GDP
1990	7.50787399630841
1991	7.64154772067392
1992	7.51196744250654
1993	7.40327129264311
1994	7.24593019795311
1995	7.15402767869267
1996	6.91853513793313
1997	6.92524107847717
1998	6.72040017806826
1999	6.58865221321547
2000	6.49439772176823
2001	6.33117774129596
2002	6.24343644785652
2003	5.98490489374631
2004	5.85725138756404
2005	5.58939754176621
2006	5.40444043871647
2007	5.27688652274602
2008	5.29126748871587
2009	5.3556254894732
2010	5.13078989574411
2011	5.02232053202143
2012	4.9665111766863
2013	4.77786575964552
2014	4.75024160792009
2015	4.55571503764128