Year	% of total electricity output
1990	10.6022052586938
1991	10.2711585866886
1992	10.0658149438637
1993	9.87841945288754
1994	10.1083032490975
1995	8.21844630272647
1996	8.0681598141096
1997	8.08505477624611
1998	8.23036800032921
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	4.80295566502463
2014	5.05540964101889
2015	13.373253493014