Year	Kilowatt-hours
1985	3390.78233
1986	3542.64191
1987	3657.58058
1988	3706.24402
1989	3877.7346
1990	4062.75031
1991	4232.21838
1992	4458.29202
1993	4543.406
1994	4711.59278
1995	4886.15093
1996	5206.19188
1997	5375.67502
1998	5640.47598
1999	5799.72226
2000	6231.0719
2001	6384.7862
2002	6337.56911
2003	6232.79592
2004	6199.94095
2005	6167.37286
2006	6391.2701
2007	6534.22533
2008	6740.48337
2009	6206.56803
2010	6200.44228
2011	5893.30497
2012	5900.87849
2013	5584.6186
2014	5616.10141
2015	6040.07526
2016	6439.37743