Year	MJ/$2011 PPP GDP
1990	3.07965096017321
1991	3.22545766330785
1992	3.30258022805233
1993	3.00222230147546
1994	2.67314849465032
1995	2.90090109728082
1996	3.02883962101899
1997	2.83495603758541
1998	2.79176075101724
1999	3.10751930418363
2000	3.02737272172887
2001	2.76113612844914
2002	2.80105164136684
2003	2.76213747910655
2004	2.99130406750243
2005	2.86914391653231
2006	2.96636808238425
2007	2.76925315709202
2008	3.38995144434477
2009	3.23390106818224
2010	2.96854115300412
2011	3.05163160592211
2012	3.09343126203734
2013	2.93400659953548
2014	2.8939446771539
2015	3.09300365621152