Year	kWh
1960	41000000
1961	44000000
1962	45000000
1963	63000000
1964	97000000
1965	100000000
1966	122000000
1967	173000000
1968	179000000
1969	178000000
1970	166000000
1971	620000000
1972	655000000
1973	837000000
1974	1208000000
1975	1457000000
1976	1837000000
1977	1884000000
1978	1834000000
1979	2776000000
1980	4053000000
1981	5495000000
1982	6769000000
1983	7867000000
1984	8600000000
1985	9076000000
1986	10430000000
1987	11333000000
1988	12215000000
1989	13011000000
1990	13851000000
1991	15599000000
1992	16610000000
1993	16842000000
1994	18166000000
1995	19387000000
1996	19542000000
1997	20642000000
1998	22558000000
1999	25777000000
2000	30499000000
2001	32323000000
2002	33598000000
2003	36448000000
2004	39737000000
2005	43792000000
2006	48424000000
2007	54502000000
2008	59290000000
2009	68709000000
2010	76501000000
2011	88074000000
2012	103336000000
2013	115880000000
2014	134953000000
2015	156185000000