Year	kWh
1971	103000000
1972	129000000
1973	205000000
1974	192000000
1975	201000000
1976	272000000
1977	303000000
1978	335000000
1979	279000000
1980	282000000
1981	278000000
1982	299000000
1983	361000000
1984	56000000
1985	50000000
1986	50000000
1987	71000000
1988	89000000
1989	93000000
1990	98000000
1991	47000000
1992	92000000
1993	127000000
1994	174000000
1995	205000000
1996	253000000
1997	261000000
1998	205000000
1999	203000000
2000	205000000
2001	170000000
2002	62000000
2003	63000000
2004	103000000
2005	122000000
2006	129000000
2007	138000000
2008	102000000
2009	184000000
2010	180000000
2011	229000000
2012	284000000
2013	277000000
2014	268000000
2015	294000000