Year	thousand metric tons of CO2 equivalent
1970	-13240.169140625007
1971	859.0512500000077
1972	1022.3692968749965
1973	1844.519960936992
1974	2073.26964843701
1975	2454.2796875000095
1976	3041.407500000005
1977	3155.129062500011
1978	3806.61234375001
1979	5150.769453125005
1980	6611.741015624986
1981	6595.361015624989
1982	6369.662656249977
1983	6605.040468750012
1984	6937.322578125
1985	6970.438671874996
1986	7004.980546874987
1987	5340.362265624986
1988	7247.849453125018
1989	8040.641328124977
1990	-6453.314453125
1991	-7316.365234375
1992	-4782.11328125
1993	-5570.810546875
1994	-4109.80859375
1995	-2605.783203125
1996	-2156.68359375
1997	-1365.71484375
1998	-1928.740234375
1999	-70.197265625
2000	658.873046875
2001	-1293.984375
2002	-2986.90234375
2003	-2094.751953125
2004	-1245.5546875
2005	-28.56640625
2006	3093.80078125
2007	4787.212890625
2008	6845.833984375
2009	8089.595703125
2010	7985.689453125
2011	8170.48046875
2012	12907.078125
2013	12774.185546875
2014	13220.806640625
2015	6208.849609375
2016	4827.6796875