Year	% of total final energy consumption
1990	71.7
1991	73.1
1992	71.6
1993	70.5
1994	69
1995	63.8
1996	62.1
1997	60
1998	60.2
1999	60.5
2000	60.2
2001	55.9
2002	54.4
2003	52.6
2004	52
2005	50.6
2006	48.6
2007	47.2
2008	45.2
2009	43.1
2010	40.3
2011	38.4
2012	37.3
2013	37
2014	35.4
2015	33.1
2016	30.2
2017	28.1
2018	27
2019	26.1
2020	27.2
2021	25