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	0
2000	64000000
2001	206000000
2002	194000000
2003	203000000
2004	199000000
2005	206000000
2006	183000000
2007	279000000
2008	298000000
2009	391000000
2010	659000000
2011	692000000
2012	728000000
2013	1481000000
2014	1924000000
2015	2525000000