Year	% of energy use
1971	-8657.832138660586
1972	-5127.2952348883355
1973	-4232.415934980377
1974	-2665.9233030082282
1975	-2049.8689414408636
1976	-2974.278726046901
1977	-2516.7870274999527
1978	-2121.9558117892143
1979	-1989.5969145516133
1980	-1269.704882822059
1981	-744.9298546335324
1982	-630.3744113391305
1983	-588.1716024753284
1984	-548.7936726947462
1985	-464.73185995340725
1986	-464.17103104933784
1987	-401.20669445546594
1988	-454.6952307033848
1989	-431.9484876034532
1990	-555.2277012423878
1991	-620.9254458188989
1992	-591.796980346847
1993	-533.3715509289491
1994	-467.3739330408373
1995	-452.2261726840804
1996	-425.2818635138734
1997	-420.55375409632313
1998	-430.2771193820014
1999	-378.8528054966217
2000	-379.69678892399344
2001	-358.83594143901007
2002	-339.2419811939049
2003	-360.98893746263053
2004	-405.67705305558695
2005	-450.0597563283165
2006	-483.9505632821875
2007	-546.9592399527323
2008	-502.21358035234704
2009	-418.08088411586573
2010	-399.06501793323577
2011	-138.4408539694077
2012	-403.0590684519282
2013	-227.78894955332984
2014	-102.96411204291927