Year	% of total final energy consumption
1990	8.3
1991	8.1
1992	7.7
1993	8.1
1994	7.4
1995	7.4
1996	6.2
1997	8.3
1998	10.2
1999	10.3
2000	10.5
2001	10.4
2002	10.5
2003	10.4
2004	10.6
2005	10.6
2006	10.4
2007	9.9
2008	10.8
2009	10.5
2010	10.8
2011	11.4
2012	11.5
2013	10.8
2014	11
2015	10.5
2016	10.4
2017	10.2
2018	10.7
2019	10.4
2020	10.3
2021	10.2
2022	10
