Year	kWh
1971	0
1972	0
1973	161000000
1974	463000000
1975	518000000
1976	579000000
1977	592000000
1978	598000000
1979	1019000000
1980	915000000
1981	964000000
1982	1296000000
1983	1353000000
1984	1424000000
1985	1641000000
1986	3394000000
1987	4418000000
1988	4633000000
1989	4675000000
1990	5126000000
1991	6931000000
1992	7917000000
1993	8221000000
1994	7939000000
1995	8479000000
1996	7452000000
1997	6996000000
1998	7436000000
1999	7258000000
2000	7599000000
2001	8102000000
2002	7904000000
2003	8763000000
2004	9121000000
2005	10401000000
2006	9086000000
2007	10038000000
2008	8052000000
2009	7949000000
2010	8616000000
2011	8829000000
2012	10478000000
2013	11541000000
2014	14000000000
2015	17082000000