Year	% of total final energy consumption
1990	22.4
1991	23
1992	21.6
1993	19
1994	19
1995	17.7
1996	19.1
1997	18.8
1998	17.6
1999	15.9
2000	15.5
2001	15.3
2002	15.1
2003	16.1
2004	22.4
2005	20
2006	18.2
2007	16.6
2008	14.4
2009	14.2
2010	13.9
2011	11.8
2012	10.9
2013	11.6
2014	11.1
2015	11.2
2016	11.1
2017	10.4
2018	10.9
2019	10.7
2020	11.1
2021	10.9