Year	MJ/$2011 PPP GDP
1990	4.16933793975976
1991	9.23170383119196
1992	10.3447612463955
1993	10.3343990310986
1994	11.2745149756966
1995	10.6054632087908
1996	9.56419560598779
1997	9.38650650439335
1998	4.96567697056205
1999	3.26360703792057
2000	3.78819684146912
2001	4.13966007366477
2002	4.22826168782549
2003	5.80757861117393
2004	3.87703899436953
2005	3.76044654008332
2006	3.22102415751573
2007	3.23299696348451
2008	3.23572301163032
2009	3.75123499875916
2010	4.01433411531913
2011	4.08389015305167
2012	4.00553461708955
2013	4.0447611123735
2014	4.02747342269317
2015	3.71626708149862