Year	kWh
1960	10000000
1961	11000000
1962	18000000
1963	14000000
1964	16000000
1965	26000000
1966	38000000
1967	44000000
1968	47000000
1969	86000000
1970	72000000
1971	980000000
1972	1179000000
1973	1324000000
1974	1333000000
1975	1593000000
1976	1675000000
1977	2041000000
1978	2318000000
1979	2726000000
1980	2789000000
1981	2953000000
1982	3390000000
1983	4422000000
1984	3981000000
1985	4280000000
1986	4533000000
1987	4766000000
1988	4524000000
1989	4580000000
1990	5931000000
1991	6129000000
1992	8389000000
1993	8499000000
1994	9428000000
1995	12708000000
1996	13153000000
1997	14840000000
1998	14875000000
1999	16898000000
2000	16920000000
2001	20185000000
2002	21898000000
2003	24256000000
2004	26670000000
2005	32607000000
2006	39858000000
2007	52182000000
2008	72512000000
2009	100591000000
2010	136190000000
2011	177749000000
2012	222798000000
2013	299847000000
2014	358785000000
2015	437450000000