Year	thousand metric tons of CO2 equivalent
1970	1578796.3047939804
1971	1257819.9046022582
1972	1477156.0632839007
1973	1336706.5370932734
1974	1334279.6618204839
1975	1447204.0317226255
1976	1615052.3679792816
1977	1431054.6875115745
1978	1548064.9987763998
1979	1609548.5710672806
1980	1677436.0441139354
1981	1547373.124414352
1982	1619565.8362720634
1983	1682446.104949086
1984	1424686.7262134505
1985	1435404.1816942033
1986	1522224.4300161127
1987	1572865.6388457508
1988	1594935.4099021761
1989	1587587.9084820997
1990	-395903.4726897154
1991	-373006.8450173237
1992	-326130.3433369985
1993	-398115.11672450637
1994	-447935.886271333
1995	-467172.40831862297
1996	-440112.3380283498
1997	-433962.02586940135
1998	-403007.09151242435
1999	-436994.9255215288
2000	-468988.3085139059
2001	-385679.8111495102
2002	-396000.469607644
2003	-476609.4783673869
2004	-453632.2768030727
2005	-444863.52600328723
2006	-479197.1468238475
2007	-563939.6260062
2008	-460487.41514703
2009	-465667.29250860674
2010	-388325.82160602533
2011	-387222.50159730716
2012	-242111.6082833004
2013	-257637.1702727945
2014	-397506.39597961045
2015	-398858.37893075
2016	-349400.36543189094