Year	% of total final energy consumption
1990	74
1991	73.4
1992	73.6
1993	73.1
1994	73.3
1995	73
1996	73.4
1997	72.9
1998	71.5
1999	71.1
2000	69.9
2001	69.5
2002	70.3
2003	64.4
2004	63.5
2005	65.7
2006	61.8
2007	74.4
2008	73.4
2009	68.5
2010	66
2011	69
2012	68.3
2013	63.6
2014	68
2015	67
2016	64
2017	59.5
2018	57.7
2019	55.3
2020	50.8
2021	41.2
2022	39.3