Year	thousand metric tons of CO2 equivalent
1970	-6563.7172046875
1971	-6546.8259202148
1972	-6554.673389062498
1973	-7084.694355566399
1974	-7500.995691230502
1975	-9087.796340644501
1976	-9660.3041089844
1977	-10374.011511035198
1978	-11659.7378665234
1979	-12408.070227363298
1980	-12644.8270755078
1981	-13576.665217089801
1982	-13833.970395312499
1983	-14295.4785452344
1984	-14453.7455491211
1985	-13963.8092188477
1986	-13542.219714257802
1987	-14929.552763574202
1988	-13399.2214330078
1989	-14288.669716699202
1990	-828.0165405273001
1991	-774.7731933594005
1992	-61.675842285199906
1993	-37.61102294920056
1994	-56.651519775389716
1995	-17.666931152340112
1996	-12.298553466799603
1997	-14.620208740229828
1998	-1.130310058590112
1999	0.8595123290997435
2000	9.448669433590112
2001	45.270050048829944
2002	53.35827636719023
2003	65.35806274413972
2004	84.90740966796966
2005	1261.7244873046902
2006	1438.4830093383798
2007	1624.525390625
2008	2280.4372863769504
2009	2826.158737182621
2010	1568.95263671875
2011	2612.76708984375
2012	2941.8352050781214
2013	2574.8162536621094
2014	3243.139526367191
2015	3669.4074707031214
2016	2918.21575927734