Year	% of total electricity output
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	3
2004	3.00245098039216
2005	3.00360432519023
2006	3.00353356890459
2007	3.00230946882217
2008	18.989369448085
2009	18.989369448085
2010	19.1180736872643
2011	15.9168018881841
2012	15.3674832962138
2013	15.0664697193501
2014	15.3153153153153
2015	21.259842519685