Year	% of total final energy consumption
1990	7.9
1991	9
1992	13
1993	16.2
1994	26.5
1995	35
1996	29.5
1997	28.8
1998	25.1
1999	34.5
2000	35.2
2001	36
2002	28.3
2003	30.5
2004	27.7
2005	28
2006	27.8
2007	24.5
2008	22
2009	24.7
2010	25.6
2011	26
2012	22.4
2013	24.8
2014	26.6
2015	23.5
2016	22.2
2017	24.7
2018	23.4
2019	28.3
2020	30
2021	27.6