Year	thousand metric tons of CO2 equivalent
1970	-48142.88531249997
1971	-18134.569000000007
1972	-13118.775312500038
1973	-10831.70843749991
1974	-10601.37368749993
1975	-6735.373687499927
1976	-3873.5689999999267
1977	1332.6068750000122
1978	4638.689999999915
1979	7248.309999999954
1980	12604.502500000082
1981	7227.013125000081
1982	7125.30999999999
1983	11528.897812499934
1984	9527.0131250001
1985	11522.623124999984
1986	14074.505312500041
1987	11295.470624999944
1988	15164.0053125001
1989	15101.923187500077
1990	-39362.40625
1991	-31571.8984375
1992	-22830.8046875
1993	-20929
1994	-21916.6015625
1995	-20952.390625
1996	-19280.1953125
1997	-25135.6015625
1998	-30382.890625
1999	-37926.734375
2000	-42187.5
2001	-45762.140625
2002	-51128.1796875
2003	-46660.4453125
2004	-53440.5390625
2005	-59511.40625
2006	-79260.203125
2007	-64797.953125
2008	-44867.953125
2009	-36297.7734375
2010	-39415.8359375
2011	-17273.28125
2012	-14876.875
2013	-27852
2014	-23857.65625
2015	-29849.8125
2016	-21412.03125