Year	thousand metric tons of CO2 equivalent
1970	2.4519847821711895
1971	2.8832573627234126
1972	4.116158538293805
1973	4.636748452687293
1974	5.616511223626102
1975	5.75387395253181
1976	4.68621576395029
1977	7.228441056966808
1978	5.7546233306885135
1979	4.516677535486187
1980	6.460089384150489
1981	3.670740656733509
1982	13.815566556978212
1983	14.647850128459892
1984	15.490651224565516
1985	18.235588458108893
1986	16.341251241684024
1987	-3.0794522497415997
1988	15.709473492169398
1989	33.6145882760286
1990	0.5054022520781132
1991	-9.224885821342497
1992	7.808832049369812
1993	925.4061514437199
1994	-44.78647422791005
1995	-110.22995185852005
1996	330.14283180237
1997	37.509204864500134
1998	-311.8403711318997
1999	-254.3867082595798
2000	202.1033058166504
2001	-174.37872314452943
2002	1687.3794336319006
2003	2543.42952919006
2004	4339.907991409302
2005	5137.885526180271
2006	6268.466443538669
2007	4596.739075660709
2008	6217.453757286072
2009	7213.037528991699
2010	6988.92557048798
2011	7054.223104476929
2012	7844.728443145752
2013	7200.811450958252
2014	5985.384449005131
2015	5213.601490020752
2016	3703.6285896301306