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	1.75853905985796
2001	1.3903743315508
2002	1.39973082099596
2003	1.43250688705234
2004	2.76825085742283
2005	2.51233737101839
2006	2.27785295444294
2007	1.94415718717684
2008	1.47229755908563
2009	2.41157556270096
2010	3.03792569659443
2011	1.81003275297363
2012	1.61534578495709
2013	2.19157088122605
2014	2.77777777777778
2015	2.2879555482922