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	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	1000000
2000	1000000
2001	9000000
2002	30000000
2003	36000000
2004	53000000
2005	128000000
2006	142000000
2007	168000000
2008	197000000
2009	168000000
2010	160000000
2011	765000000
2012	1029000000
2013	1036000000
2014	921000000
2015	1450000000