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	2329000000
1972	2310000000
1973	2686000000
1974	3095000000
1975	3639000000
1976	4131000000
1977	4518000000
1978	4851000000
1979	6195000000
1980	7516000000
1981	8983000000
1982	10685000000
1983	12698000000
1984	13055000000
1985	13817000000
1986	15737000000
1987	17058000000
1988	17802000000
1989	18631000000
1990	20338000000
1991	22019000000
1992	24634000000
1993	24553000000
1994	26684000000
1995	30992000000
1996	31839000000
1997	34378000000
1998	36374000000
1999	41386000000
2000	46055000000
2001	49436000000
2002	52401000000
2003	57790000000
2004	62882000000
2005	71503000000
2006	81893000000
2007	96471000000
2008	118436000000
2009	151555000000
2010	194557000000
2011	238816000000
2012	294014000000
2013	381215000000
2014	451330000000
2015	542053000000