Year	MJ/$2017 PPP GDP
2000	6.72
2001	6.69
2002	6.67
2003	6.72
2004	6.56
2005	6.08
2006	5.83
2007	5.51
2008	5.26
2009	5.19
2010	5.37
2011	5.08
2012	5.09
2013	5.09
2014	4.83
2015	4.59
2016	4.43
2017	4.39
2018	4.26
2019	4.07
2020	4.06
2021	4.16
2022	3.98
