Year	kg of oil equivalent (constant 2021 PPP)
1990	60.23675448751588
1991	60.784691747199936
1992	59.90472841629373
1993	60.10373875946378
1994	58.0947734998656
1995	61.30331209250939
1996	60.48378720489506
1997	60.24104396358362
1998	60.82686568149184
1999	60.7756000216856
2000	59.67181512577614
2001	58.72638808363205
2002	58.98821646235035
2003	61.72609838609912
2004	61.281989142940404
2005	61.9464498772709
2006	60.30177077298273
2007	59.225846892806416
2008	59.01340443723201
2009	58.176231237232095
2010	58.585299454572684
2011	56.24205555205116
2012	55.678781857984866
2013	54.63470841681219
2014	51.61387577158347
2015	52.59147852763337