Year	kWh
1971	227000000
1972	227000000
1973	230000000
1974	266000000
1975	266000000
1976	245000000
1977	242000000
1978	215000000
1979	163000000
1980	85000000
1981	76000000
1982	151000000
1983	145000000
1984	142000000
1985	169000000
1986	154000000
1987	136000000
1988	136000000
1989	145000000
1990	136000000
1991	133000000
1992	133000000
1993	109000000
1994	119000000
1995	142000000
1996	137000000
1997	155000000
1998	127000000
1999	140000000
2000	159000000
2001	164000000
2002	187000000
2003	197000000
2004	154000000
2005	349000000
2006	349000000
2007	418000000
2008	461000000
2009	461000000
2010	674000000
2011	676000000
2012	729000000
2013	1158000000
2014	1747000000
2015	1732000000