Year	kg of oil equivalent (constant 2021 PPP)
1990	55.12833152246296
1991	52.50944538860687
1992	52.56338198235277
1993	53.00061031680033
1994	53.28359520024427
1995	55.147610010209256
1996	53.07380701762516
1997	53.06108170314333
1998	52.59210043359382
1999	50.91215821255794
2000	50.031354238566735
2001	52.08399624841114
2002	51.35954553646242
2003	51.669878353181204
2004	50.00611732455275
2005	48.73966572242566
2006	48.95491366874752
2007	47.773590578061295
2008	47.29831468604979
2009	47.37025044937232
2010	48.59481349052206
2011	47.35212532904694
2012	46.64741885641463
2013	44.93560745037458
2014	44.242088873974254