Year	% of total electricity output
1990	0.866648029074644
1991	0.672043010752688
1992	0.754527162977867
1993	0.733560387739062
1994	0.786434013271074
1995	0.76619456698398
1996	0.374366879541951
1997	0.360866078588613
1998	0.348229831688915
1999	0.343053173241852
2000	0.366367466568969
2001	0.513819985825656
2002	0.460666194188519
2003	0.186422246388069
2004	0.357698289269051
2005	0.311703032020402
2006	0.62586926286509
2007	0.247524752475248
2008	0.258698745311085
2009	0.24225423944919
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0