Year	MJ/$2017 PPP GDP
2000	5.21
2001	5.26
2002	4.87
2003	4.77
2004	4.52
2005	4.16
2006	3.85
2007	3.58
2008	3.54
2009	3.96
2010	4.25
2011	3.91
2012	3.79
2013	3.65
2014	3.58
2015	3.39
2016	3.3
2017	3.31
2018	3.35
2019	3.16
2020	3.08
2021	3.1
2022	2.88