Year	kg of oil equivalent (constant 2021 PPP)
1990	96.9819557264533
1991	95.94681940774439
1992	91.73877773764742
1993	91.0262896613665
1994	90.34011434878032
1995	83.11478925302063
1996	82.52183688465415
1997	78.28054508409414
1998	76.34664581452977
1999	72.44860327117695
2000	68.66953445941229
2001	67.84129338860129
2002	64.23506591020465
2003	60.84853115130284
2004	58.741735204968144
2005	55.907972901372105
2006	53.465990727008666
2007	52.13512711219361
2008	53.71495491907496
2009	54.671738758391086
2010	54.102479372797134
2011	48.772926081847636
2012	48.832947238229835
2013	47.87317879992317
2014	43.1565495947127
2015	35.99954261690882