Year	kg of oil equivalent (constant 2021 PPP)
1990	38.01538728588326
1991	38.76473512759611
1992	37.3195774208573
1993	37.923695368957226
1994	34.6080794756878
1995	37.99907005630873
1996	34.33463308893843
1997	33.06224290991043
1998	31.898851344175824
1999	32.234847909129954
2000	29.754645605010932
2001	32.132236901656825
2002	30.948964960000986
2003	36.22904824284484
2004	37.17838860909303
2005	37.32949199685091
2006	45.1220939871553
2007	42.915222081686466
2008	43.19778998562265
2009	44.18389956394301
2010	43.77942386271882
2011	57.033798671524394
2012	59.45176525501095
2013	61.426780028033015
2014	57.66521400000212