Year	% of total electricity output
1990	0.610696254194758
1991	1.1891034880369
1992	0.450955582074516
1993	0.0842173268497528
1994	0.59609375433611
1995	0.285358262173578
1996	0.69124192966275
1997	1.07723557669166
1998	0.89971126462154
1999	0.460528285317979
2000	0.677453966329383
2001	1.1010073352452
2002	1.20879925330796
2003	0.417733342558638
2004	0.508031378408666
2005	0.665138088450972
2006	1.26768480093761
2007	0.44299424184261
2008	0.587823214712017
2009	0.693636934546118
2010	0.948380661450703
2011	0.918420809319814
2012	0.602950810668738
2013	0.609023981800373
2014	1.29313627636078
2015	2.25504182608132