Year	% of energy use
1971	-3651.9178151744063
1972	-5228.087044245973
1973	-3719.7834802830025
1974	-2190.067459702679
1975	-1827.1556713549198
1976	-1709.4787996996488
1977	-1688.652923775467
1978	-1817.6955425067722
1979	-1881.1465976188642
1980	-1466.020985621841
1981	-1186.7740135818856
1982	-1115.320786642312
1983	-1065.9636625336207
1984	-864.8333946926721
1985	-801.3058278874743
1986	-899.0958615477302
1987	-867.3371581299971
1988	-1034.6290012060738
1989	-885.8284393767651
1990	-805.7894316249808
1991	-737.9037763203244
1992	-734.4239809112861
1993	-749.6257980887923
1994	-839.3603061111861
1995	-711.7893373624
1996	-681.1874652953389
1997	-651.1494779342017
1998	-629.1875084900519
1999	-683.4527742503428
2000	-725.5084281608014
2001	-799.1967829647149
2002	-839.3335731297043
2003	-746.2015980454581
2004	-803.4359583926573
2005	-849.55521188867
2006	-608.1367377847077
2007	-542.866744173652
2008	-495.88002834020654
2009	-522.4286398804261
2010	-473.1907266349705
2011	-382.7048053324588
2012	-383.54231254663785
2013	-458.3725434379149
2014	-357.3943791761478