Year	% of total final energy consumption
1990	68.8
1991	70.6
1992	67.2
1993	67.7
1994	64.6
1995	64.6
1996	63.9
1997	62.8
1998	60.5
1999	59.4
2000	58.4
2001	56.7
2002	54.7
2003	51.5
2004	51.2
2005	52.8
2006	53.3
2007	52.6
2008	53.8
2009	54.6
2010	54.4
2011	53.3
2012	53.3
2013	54.3
2014	53
2015	50
2016	49.5
2017	48.9
2018	51.3
2019	50.5
2020	52.2
2021	50.4