Year	kg of oil equivalent (constant 2021 PPP)
2000	166.85824797166697
2001	164.91504176595018
2002	166.707436138747
2003	164.32690970907603
2004	161.3050094428727
2005	158.79349951098746
2006	156.01606737593644
2007	151.1365843643328
2008	148.3090264962626
2009	148.40085195827382
2010	145.4954075299271
2011	145.83459637716118
2012	149.10946139366177
2013	145.87844395372053