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	78000000
1983	209000000
1984	217000000
1985	224000000
1986	232000000
1987	719000000
1988	1012000000
1989	1007000000
1990	1125000000
1991	1049000000
1992	1084000000
1993	1094000000
1994	1939000000
1995	2215000000
1996	2357000000
1997	2610000000
1998	2622000000
1999	2733000000
2000	4875000000
2001	6039000000
2002	6249000000
2003	6309000000
2004	6676000000
2005	6626000000
2006	6690000000
2007	7057000000
2008	8356000000
2009	9362000000
2010	9457000000
2011	9578000000
2012	9678000000
2013	9583000000
2014	10987000000
2015	11181000000