Year	kg of oil equivalent (constant 2011 PPP)
1990	104.291368322527
1991	103.589429266614
1992	103.796916097926
1993	100.737593822936
1994	101.33534914379
1995	101.224215351809
1996	101.932097767498
1997	100.610417746092
1998	101.545770085741
1999	102.849028238434
2000	100.301100732667
2001	101.021777590323
2002	102.72454720367
2003	103.338574382099
2004	101.597732486884
2005	101.185027258043
2006	100.449185308975
2007	96.8878171617259
2008	96.2845570361988
2009	97.4865351757411
2010	96.8618148198958
2011	94.5340920185861
2012	95.7795614963722
2013	94.8911467039069
2014	92.8850814583344
