Year	% of total final energy consumption
1990	7.2
1991	7.5
1992	7.7
1993	8
1994	9
1995	9.6
1996	10.2
1997	9.6
1998	9.9
1999	9.4
2000	8.7
2001	8.6
2002	9
2003	9.3
2004	9.4
2005	9.2
2006	9
2007	10.9
2008	10.2
2009	10.4
2010	11
2011	14.8
2012	15.4
2013	20.8
2014	18.5
2015	22.6
2016	24
2017	10.2
2018	11.9
2019	10
2020	11.2
2021	14.7