Year	% of energy use
1971	-104.65402437208684
1972	-123.88108398245494
1973	-148.68872405116375
1974	-145.27155850681137
1975	-129.27436230803644
1976	-145.74052971000637
1977	-147.2497194892192
1978	-134.231996394032
1979	-126.8499032093045
1980	-124.47382577627441
1981	-117.27024184594812
1982	-90.03183428726447
1983	-91.37061387611209
1984	-110.6680160965794
1985	-94.40298866280804
1986	-87.73988526139269
1987	-82.5111607817066
1988	-81.17271787658866
1989	-83.16076969578019
1990	-70.86072012164698
1991	-76.99152577014773
1992	-73.7124902148447
1993	-63.970972331732376
1994	-74.90676111845625
1995	-63.951497646629164
1996	-64.25044769569685
1997	-62.42802803879272
1998	-67.12564814453263
1999	-65.67315899039848
2000	-52.56666114230032
2001	-51.81840450119891
2002	-50.28629313474403
2003	-53.98829091010568
2004	-50.174291107570234
2005	-55.91462481649402
2006	-70.83174954544576
2007	-74.09463245724235
2008	-73.63386436391937
2009	-74.39975664619436
2010	-79.04613071006996
2011	-106.70815553138273
2012	-107.21107341770568
2013	-112.28375075832191
2014	-103.09132954766275