Year	% of total electricity output
1990	4.79123887748118
1991	4.69798657718121
1992	0.0303421072593492
1993	0.0395663527736013
1994	0.038109756097561
1995	0.0408163265306122
1996	0.0495049504950495
1997	0.0526426616129712
1998	0.0637213254035684
1999	0.0564334085778781
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	0
2014	0
2015	0