Year	% of energy use
1971	-1121.031408314104
1972	-1078.6746459733997
1973	-1056.238113607082
1974	-870.736075624817
1975	-770.8778852474042
1976	-765.5995640989157
1977	-685.0957361982731
1978	-644.4234403302622
1979	-501.62802061824806
1980	-331.83101148703753
1981	-183.74561617332915
1982	-192.0725868130935
1983	-199.77394778986712
1984	-178.72673740183913
1985	-174.00839034801942
1986	-159.96005986654768
1987	-190.13083995183888
1988	-215.24181281212753
1989	-212.15034458651544
1990	-204.44587947201532
1991	-161.50743571004114
1992	-154.3327182390585
1993	-146.42599305554444
1994	-135.94220856874762
1995	-134.04458310776417
1996	-135.31873033790416
1997	-134.4794319558405
1998	-153.89991887256545
1999	-152.06610526541186
2000	-157.5721485997192
2001	-136.85421883992018
2002	-130.0700093897995
2003	-128.64597379445505
2004	-124.85391390745849
2005	-116.4057047918758
2006	-114.09581148701798
2007	-110.3887538089371
2008	-101.67729081683207
2009	-92.61049230073262
2010	-93.72570449036806
2011	-78.69897214516195
2012	-71.64266511566919
2013	-62.07422692743774
2014	-54.77227438173024