Year	% of total electricity output
1990	0.329851566794942
1991	0.214822771213749
1992	0.361827227498869
1993	0.483091787439614
1994	0.295508274231678
1995	0.338319088319088
1996	0.379663255199736
1997	0.319284802043423
1998	0.237212750185322
1999	0.240079084875018
2000	0.569491525423729
2001	0.675586170353689
2002	0.750122970978849
2003	0.62546910182637
2004	0.691424110627858
2005	0.673296043090947
2006	0.539568345323741
2007	0.569186985616491
2008	0.53475935828877
2009	0.483464125560538
2010	0.494010962983014
2011	0.450604219294053
2012	0.42178838274283
2013	0.370735098186874
2014	0.362239297475302
2015	0.967708004628169