Year	kg of oil equivalent (constant 2011 PPP)
1990	83.3524268842973
1991	80.7395640906925
1992	84.987960288882
1993	85.5531014586684
1994	86.9254663238193
1995	92.1717296306933
1996	88.1865967893159
1997	88.9530245665043
1998	91.7272870515612
1999	94.7579145606338
2000	91.9286445845574
2001	90.8573889491999
2002	93.9298257329072
2003	92.2248860863877
2004	93.153981419175
2005	94.7233430712023
2006	88.6696660262066
2007	87.1226036072677
2008	84.7132887536285
2009	86.1537455694121
2010	81.5989463964502
2011	80.8052557040246
2012	79.0135534775138
2013	80.2140818256025
2014	78.1792288460963
2015	80.1148256798859