Year	kg of oil equivalent (constant 2011 PPP)
1990	107.014724779922
1991	101.996897771171
1992	105.210591510995
1993	100.211274251395
1994	104.970748590843
1995	103.870289636728
1996	101.331086852452
1997	99.1209839986359
1998	103.103005991232
1999	100.488225355935
2000	99.4528643433966
2001	101.129856473798
2002	101.136683619788
2003	99.2392900656778
2004	98.4778384526634
2005	93.4923850857379
2006	93.5060110290157
2007	90.5009057177517
2008	90.5496720871651
2009	85.3668950502848
2010	92.5929969489105
2011	90.1033848904274
2012	90.4420603027713
2013	89.3606175338388
2014	87.6385820441852