Year	kWh
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	3000000
1991	8000000
1992	8000000
1993	8000000
1994	9000000
1995	9000000
1996	7000000
1997	7000000
1998	7000000
1999	7000000
2000	7000000
2001	7000000
2002	7000000
2003	7000000
2004	8000000
2005	8000000
2006	8000000
2007	8000000
2008	8000000
2009	9000000
2010	9000000
2011	9000000
2012	12000000
2013	11000000
2014	12000000
2015	12000000