Year	thousand metric tons of CO2 equivalent
1970	1091.2875366211038
1971	575.5493798827965
1972	386.2618652343963
1973	1174.2338964844002
1974	1112.7098876952978
1975	1166.8961962890999
1976	816.8612050781039
1977	1550.1159667968968
1978	1692.6713232422007
1979	1363.942059570296
1980	1579.3890673827977
1981	2285.1088256836015
1982	1164.3606743163969
1983	2173.8572070311984
1984	1396.5994921874972
1985	1925.6117431641005
1986	1676.7818481445033
1987	3509.6685449218994
1988	1862.696130371101
1989	2570.0670922851996
1990	-2386.600708007798
1991	-2118.4892578125
1992	-2081.826904296897
1993	-1851.0443115234011
1994	-1664.642700195298
1995	-1476.9333496093968
1996	-1540.919433593801
1997	-1132.749511718801
1998	-1331.0065917968968
1999	-966.1945800781032
2000	-814.8115234375
2001	-219.83325195310317
2002	-660.7749023438009
2003	-650.7629394531032
2004	-603.7124023438009
2005	-595.2814941406032
2006	-387.30859375
2007	-266.1787109375
2008	-296.7575683593968
2009	-113.20239257810317
2010	-278.6267089843968
2011	-139.8896484375
2012	1118.33984375
2013	1171.435058593699
2014	1327.7302246093968
2015	30.830078125
2016	1473.070800781199