Year	% of total final energy consumption
1990	12.3
1991	13.1
1992	13.9
1993	12.4
1994	12.3
1995	11.5
1996	11.1
1997	10.2
1998	11.1
1999	10.9
2000	18
2001	18.7
2002	16.3
2003	16.9
2004	17.8
2005	18.6
2006	17.4
2007	18.4
2008	17.6
2009	19.6
2010	20.1
2011	19.1
2012	20.2
2013	22.5
2014	22.9
2015	21.4
2016	21
2017	19.7
2018	20.6
2019	20.9
2020	22.7
2021	23.4