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	2161000000
1972	2134000000
1973	2508000000
1974	2908000000
1975	3277000000
1976	3392000000
1977	3786000000
1978	4033000000
1979	4855000000
1980	4705000000
1981	4825000000
1982	5575000000
1983	6561000000
1984	6262000000
1985	6682000000
1986	8650000000
1987	10112000000
1988	10245000000
1989	10387000000
1990	11754000000
1991	13575000000
1992	16221000000
1993	16227000000
1994	16883000000
1995	20630000000
1996	20548000000
1997	21974000000
1998	22282000000
1999	24146000000
2000	24561000000
2001	26460000000
2002	28239000000
2003	31534000000
2004	33522000000
2005	39686000000
2006	44049000000
2007	54288000000
2008	69883000000
2009	94441000000
2010	132908000000
2011	167557000000
2012	211156000000
2013	288690000000
2014	344634000000
2015	424358000000