Year	% of total final energy consumption
1990	14.5
1991	17.2
1992	17.8
1993	19.2
1994	20.9
1995	23.3
1996	18
1997	15.2
1998	15.5
1999	22.1
2000	22.1
2001	19.6
2002	18
2003	15.7
2004	14.6
2005	16.1
2006	15.3
2007	14
2008	15.5
2009	20.7
2010	20.5
2011	17.4
2012	19.5
2013	20
2014	23.2
2015	21.2
2016	20.9
2017	20
2018	21
2019	21.4
2020	26
2021	27.2