Year	% of energy use
1971	40.805801888036584
1972	-124.8843065901244
1973	-403.9630592970654
1974	-256.1674171921398
1975	-197.42514144837665
1976	-206.8550918462589
1977	-154.1229650505632
1978	-167.11823513528861
1979	-160.44019345891783
1980	-134.37889478596304
1981	-130.56275563599377
1982	-111.79491230700955
1983	-161.1260802503943
1984	-166.22045188585832
1985	-181.68657821850093
1986	-190.98287641406702
1987	-81.77601814893761
1988	-182.4576359372123
1989	-177.24686809137805
1990	-159.06296149084966
1991	-158.5555385546337
1992	-168.69407665712126
1993	-208.55395828818612
1994	-215.8156708137024
1995	-177.91200897103244
1996	-160.96518004558092
1997	-152.22433622220842
1998	-139.06222629881304
1999	-165.22241916734822
2000	-154.29191683994608
2001	-142.46745085278934
2002	-141.4994745037086
2003	-153.6970332123075
2004	-209.63588523312833
2005	-194.88857909931338
2006	-199.58702724118993
2007	-156.97492768653066
2008	-178.77383342093748
2009	-125.64908518633287
2010	-123.06956245786245
2011	-117.98283613741039
2012	-125.65751146770347
2013	-118.75887989884713
2014	-114.71213819645737