Year	Kilowatt-hours
1985	4191.50251
1986	4215.37355
1987	4274.73561
1988	4357.4551
1989	4417.96676
1990	4403.02685
1991	4379.01647
1992	4263.69514
1993	4331.99262
1994	4426.36741
1995	4470.14024
1996	4664.26348
1997	4818.46862
1998	4628.35756
1999	4507.44611
2000	4606.99241
2001	4529.48093
2002	4629.54959
2003	4915.76617
2004	5069.91103
2005	5016.73618
2006	5141.33797
2007	5281.51711
2008	5123.56858
2009	4896.13488
2010	5032.50356
2011	5023.38955
2012	4866.57918
2013	4762.55164
2014	4669.27032
2015	4515.36388
2016	4497.15028