Year	% of energy use
1971	-17632.76611279249
1972	-16718.714438428913
1973	-15639.376054835939
1974	-10003.213837617332
1975	-7333.483060461572
1976	-4940.459029936504
1977	-2265.2316591429694
1978	-2863.9247296343765
1979	-1749.3596631678822
1980	-1210.9050054480713
1981	-1678.8452296286166
1982	-1106.1206442868468
1983	-1416.5722317453447
1984	-896.0285036812732
1985	-1167.1759432554215
1986	-1422.7794384689194
1987	-1278.555793907037
1988	-1422.4768579219751
1989	-1252.3684993660106
1990	-807.856731815717
1991	-576.3311066243208
1992	-664.6952827730571
1993	-647.0563925621163
1994	-665.6084012166086
1995	-697.366802155117
1996	-699.609570894734
1997	-663.7944912028349
1998	-661.880587685676
1999	-666.7996795645714
2000	-697.0313093297516
2001	-740.7516448621625
2002	-674.1564522903891
2003	-595.1635041639006
2004	-559.384684905626
2005	-501.5274395784118
2006	-292.77202115016
2007	-235.68525113046312
2008	-277.98098950647335
2009	-295.9597886338269
2010	-258.436936634927
2011	-215.75700493311518
2012	-205.86980717924254
2013	-209.61606178175032
2014	-206.19471212827932