Year	kWh
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	130000000
1971	160000000
1972	226000000
1973	399000000
1974	357000000
1975	310000000
1976	354000000
1977	360000000
1978	276000000
1979	347000000
1980	721000000
1981	921000000
1982	1002000000
1983	1450000000
1984	1853000000
1985	1808000000
1986	1986000000
1987	1965000000
1988	2046000000
1989	2194000000
1990	1949000000
1991	1873000000
1992	2041000000
1993	2220000000
1994	2302000000
1995	2454000000
1996	2263000000
1997	2977000000
1998	3098000000
1999	3056000000
2000	4556000000
2001	4261000000
2002	4785000000
2003	5191000000
2004	8053000000
2005	8429000000
2006	9348000000
2007	11269000000
2008	12337000000
2009	13952000000
2010	15703000000
2011	17625000000
2012	19378000000
2013	21327000000
2014	21977000000
2015	27130000000