Year	% of total electricity output
1990	100
1991	100
1992	100
1993	99.6515127514652
1994	99.5417348608838
1995	99.6893394375409
1996	99.9698204315678
1997	99.4917223351728
1998	77.5303643724696
1999	83.5866752910737
2000	91.4993769901703
2001	84.0946685328922
2002	69.2424034098721
2003	66.0659639578375
2004	87.4482530220235
2005	82.9257513258692
2006	66.6548042704626
2007	53.4107194038406
2008	74.4233541566554
2009	76.7693681625363
2010	68.8108586603718
2011	67.5089285714286
2012	67.1240851630073
2013	63.9888120581151
2014	64.7303864846101
2015	50.8920024366896