Year	% of total final energy consumption
1990	39.9
1991	33.9
1992	33.6
1993	38.6
1994	41.1
1995	36.5
1996	30.4
1997	33.9
1998	32
1999	27.2
2000	26.4
2001	26
2002	24.3
2003	26.3
2004	22
2005	25.3
2006	0
2007	0
2008	0
2009	0
2010	1
2011	0.9
2012	1.3
2013	1.4
2014	1.6
2015	1.6
2016	1.7
2017	1.3
2018	1.3
2019	1.3
2020	1.6
2021	1.6
2022	1.5