Year	thousand metric tons of CO2 equivalent
1970	6749.250189208995
1971	6754.2567980957
1972	6760.877355957
1973	6791.506695556601
1974	6827.4819458008005
1975	6903.455175781199
1976	6914.440124511702
1977	6921.641650390597
1978	6908.363574218698
1979	6923.732934570304
1980	6946.694421386701
1981	6954.658227539103
1982	6928.770483398404
1983	6689.164813232403
1984	6635.860180664102
1985	7134.9129028319985
1986	7093.263671874997
1987	6507.3709838867
1988	7347.6559692383
1989	7364.9711181641
1990	679.7685546875
1991	-1624.2476806640916
1992	-5416.650512695298
1993	-7174.269897460901
1994	-7834.430541992202
1995	-9552.219116210901
1996	-10472.799316406301
1997	-7456.669433593801
1998	-6261.1005859375
1999	-6616.3701171875
2000	-7445.330566406301
2001	-5718.164794921904
2002	-5069.249267578096
2003	-7982.770751953096
2004	-6972.160644531308
2005	-4444.080810546904
2006	-3797.710693359404
2007	-4391.560791015596
2008	-376.1806640625
2009	-5253.7919921875
2010	-5826.840576171904
2011	-1079.3540039063082
2012	945.4095458984011
2013	4192.706298828103
2014	12125.1181640625
2015	5170.649902343699
2016	2093.926635742202