Year	kWh
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	31000000
2000	70000000
2001	72000000
2002	102000000
2003	122000000
2004	121000000
2005	114000000
2006	112000000
2007	113000000
2008	290000000
2009	192000000
2010	231000000
2011	318000000
2012	430000000
2013	481000000
2014	519000000
2015	547000000