Year	kWh
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	0
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	5000000
1993	15000000
1994	19000000
1995	16000000
1996	41000000
1997	131000000
1998	254000000
1999	278000000
2000	339000000
2001	431000000
2002	470000000
2003	540000000
2004	764000000
2005	1242000000
2006	1751000000
2007	2127000000
2008	2619000000
2009	3206000000
2010	3129000000
2011	4716000000
2012	4454000000
2013	5029000000
2014	5681000000
2015	7051000000