Year	% of energy use
1971	-1337.5665861628004
1972	-1538.4661359584754
1973	-1400.6465079833354
1974	-1198.3563239999066
1975	-969.619133558216
1976	-933.9698148520685
1977	-785.9692026662965
1978	-743.0744308303124
1979	-361.617806174747
1980	-112.1915972799494
1981	-85.32990041244145
1982	-158.56023239395432
1983	-210.5600543041072
1984	-140.4688399478257
1985	-127.74244669766077
1986	-87.84067471203394
1987	-132.93621387747288
1988	-149.92856289263065
1989	-149.8742679618103
1990	-170.92881229881246
1991	-160.82759144913186
1992	-165.63617981307073
1993	-161.5833217669805
1994	-139.21349209494127
1995	-134.80938756496823
1996	-140.95067718597872
1997	-117.80360953301215
1998	-116.77320532337563
1999	-93.57252293229966
2000	-106.18185850561564
2001	-86.06906904715514
2002	-83.96348465878555
2003	-97.06318809165079
2004	-88.10528997061928
2005	-79.91087099909561
2006	-78.82855755373845
2007	-76.68534189787555
2008	-65.05759036630467
2009	-63.617534912060535
2010	-67.53083567676582
2011	-65.92590874034818
2012	-37.20267307483966
2013	-34.830977379812225
2014	-33.39527219269894