Year	% of total electricity output
1990	11.4330056906363
1991	10.1330108827086
1992	8.94985383404542
1993	6.60438844232023
1994	8.65699100572363
1995	3.44253192670738
1996	6.44064842252048
1997	6.06341710237814
1998	6.71479583915541
1999	5.76470588235294
2000	4.74922325787838
2001	5.70952161913524
2002	4.01285829091883
2003	3.79971590909091
2004	3.03447717052222
2005	2.83207925284531
2006	2.53631776776946
2007	2.41573939687147
2008	2.77631655853644
2009	1.12166124216586
2010	1.78720274577102
2011	1.9749507394741
2012	1.60001647378609
2013	1.94653614457831
2014	1.31972423672665
2015	1.2268899018827