Year	thousand metric tons of CO2 equivalent
1970	-64167.396386719
1971	-66112.38675781302
1972	-57469.121484375006
1973	-71551.12734374999
1974	-77532.480625
1975	-95301.88199218799
1976	-89733.339257813
1977	-96200.99046875001
1978	-104706.83218750001
1979	-112530.15738281299
1980	-122189.886875
1981	-116448.28246093799
1982	-107314.260976563
1983	-103639.662265625
1984	-94478.14964843799
1985	-87438.118554688
1986	-77643.81214843798
1987	-86320.14222656301
1988	-88183.96742187502
1989	-87137.89027343798
1990	-13029.827148437995
1991	-13764.680664062995
1992	-10537.16015625
1993	-8578.055664062995
1994	-8952.750976562995
1995	-9527.862304687995
1996	-9594.515625
1997	-11173.33203125
1998	-11783.462402344012
1999	-11795.602050781003
2000	-16975.948242187995
2001	-16955.5859375
2002	-20738.152832030988
2003	-21119.851074219012
2004	-21979.313476562995
2005	-22234.608398437995
2006	-27021.001953125
2007	-29497.088867187995
2008	-24967.899414062995
2009	-23730.47265625
2010	-20146.3984375
2011	-21864.577148438024
2012	-5239.24609375
2013	-5236.521484375
2014	-34616.30859375
2015	-20260.184570312995
2016	-7609.5390625