Year	kg of oil equivalent (constant 2021 PPP)
1990	175.2592635561976
1991	181.50355003711934
1992	181.9103490996411
1993	190.60613774846618
1994	191.5085337358332
1995	192.2997876616465
1996	188.3992358367819
1997	185.78238364244865
1998	183.7774896353037
1999	186.0334200775046
2000	180.92049511203916
2001	180.2232322697442
2002	172.51689620361816
2003	173.57565382981986
2004	169.41460579901982
2005	163.30820959995904
2006	156.59445295021013
2007	153.52028582651346
2008	155.05822464227083
2009	151.38631306651843
2010	147.11676447817052
2011	145.04211743116284
2012	144.09706792487296
2013	140.01963982042076
2014	136.04724974677129