Year	MJ/$2017 PPP GDP
2000	3.97
2001	4.02
2002	3.94
2003	3.96
2004	3.94
2005	3.89
2006	3.86
2007	3.56
2008	3.57
2009	3.53
2010	3.57
2011	3.26
2012	3.27
2013	3.32
2014	3.11
2015	3.08
2016	3.02
2017	2.95
2018	2.85
2019	2.76
2020	2.69
2021	2.7
2022	2.47