Year	Kilowatt-hours
1985	312.56951
1986	339.56
1987	369.53979
1988	400.79888
1989	409.28022
1990	427.05787
1991	453.53391
1992	471.00087
1993	488.32732
1994	483.6204
1995	519.01361
1996	536.4927
1997	484.02245
1998	502.03676
1999	482.26962
2000	460.10315
2001	498.92149
2002	514.54454
2003	521.22023
2004	545.86043
2005	585.89562
2006	611.86935
2007	611.77684
2008	587.78596
2009	581.1568
2010	588.00359
2011	575.82698
2012	557.96832
2013	562.26152
2014	577.53792
2015	581.68604
2016	597.40126