Year	kg of oil equivalent (constant 2011 PPP)
1990	179.18795082368
1991	178.40781083432
1992	175.5888242494
1993	174.490463839543
1994	170.703327703842
1995	169.722099922078
1996	167.534963999841
1997	162.644764779066
1998	159.33632603147
1999	157.078251426375
2000	153.433036704651
2001	151.686507391273
2002	150.5590335056
2003	150.348408265145
2004	149.132012723156
2005	146.309094376937
2006	142.924371904793
2007	139.450048510204
2008	137.43947802651
2009	137.028691373644
2010	137.567242307508
2011	134.407431579798
2012	132.521111213563
2013	129.863392812274
2014	126.44881954713