Year	kWh
1971	138000000
1972	142000000
1973	146000000
1974	151000000
1975	155000000
1976	160000000
1977	165000000
1978	170000000
1979	175000000
1980	180000000
1981	186000000
1982	194000000
1983	199000000
1984	205000000
1985	211000000
1986	586000000
1987	584000000
1988	554000000
1989	561000000
1990	571000000
1991	548000000
1992	531000000
1993	537000000
1994	428000000
1995	558000000
1996	562000000
1997	537000000
1998	562000000
1999	556000000
2000	611000000
2001	667000000
2002	580000000
2003	969000000
2004	1312000000
2005	1304000000
2006	1960000000
2007	1401000000
2008	1556000000
2009	1787000000
2010	1920000000
2011	1981000000
2012	2045000000
2013	2471000000
2014	4504000000
2015	4980000000