Year	% of total final energy consumption
1990	14.4
1991	13.2
1992	13.4
1993	13.3
1994	11.9
1995	13.3
1996	13.1
1997	12.7
1998	12.2
1999	12.8
2000	12.2
2001	11.3
2002	10.7
2003	10.2
2004	10.2
2005	10.3
2006	9.8
2007	9.5
2008	9.8
2009	9.2
2010	9.4
2011	9.1
2012	9
2013	9.2
2014	9.8
2015	9.2
2016	9.2
2017	10.1
2018	10.3
2019	10.3
2020	12.3
2021	13