Year	% of total final energy consumption
1990	33.5
1991	33
1992	31.7
1993	26.4
1994	23.8
1995	22.6
1996	21
1997	21.1
1998	21.5
1999	21.1
2000	21.8
2001	19.9
2002	19.9
2003	20.2
2004	19.9
2005	20.1
2006	20.5
2007	21.6
2008	22.6
2009	22.8
2010	22.8
2011	23
2012	23.6
2013	23.2
2014	24.4
2015	22.6
2016	22.4
2017	22.2
2018	23.7
2019	23.9
2020	20.9
2021	19