Year	kWh
1960	51000000
1961	55000000
1962	63000000
1963	77000000
1964	113000000
1965	126000000
1966	160000000
1967	217000000
1968	226000000
1969	262000000
1970	225000000
1971	1725000000
1972	1954000000
1973	2281000000
1974	2684000000
1975	3187000000
1976	3653000000
1977	4074000000
1978	4302000000
1979	5628000000
1980	6972000000
1981	8494000000
1982	10176000000
1983	12295000000
1984	12592000000
1985	13375000000
1986	15324000000
1987	16435000000
1988	17033000000
1989	17880000000
1990	20064000000
1991	22003000000
1992	25301000000
1993	25626000000
1994	27749000000
1995	32350000000
1996	32873000000
1997	35504000000
1998	37084000000
1999	41815000000
2000	46358000000
2001	51128000000
2002	53987000000
2003	59537000000
2004	65349000000
2005	74640000000
2006	85327000000
2007	102094000000
2008	126416000000
2009	162641000000
2010	206216000000
2011	256998000000
2012	317979000000
2013	408563000000
2014	487125000000
2015	586201000000