Year	kg of oil equivalent (constant 2021 PPP)
1990	47.80667563504676
1991	46.917302222427566
1992	52.472106197734625
1993	48.983360072771156
1994	46.640347983448734
1995	45.373073324357264
1996	42.891766733259935
1997	39.253214360468014
1998	54.451269767212395
1999	65.12814441749805
2000	51.1699899699299
2001	53.03653092948914
2002	48.416798957058205
2003	48.33270415725143
2004	41.76246171732594
2005	38.47588346829802
2006	37.91375453015869
2007	38.25462196238168
2008	36.72496547047682
2009	39.632761999035
2010	34.542299445853104
2011	35.57372017525403
2012	33.799938625163556
2013	32.07578439993514
2014	31.864325135850805