Year	thousand metric tons of CO2 equivalent
1970	871.934868164059
1971	883.0417773437505
1972	953.9115063476604
1973	961.4752563476598
1974	984.1755102539103
1975	1376.003210449221
1976	1852.9500732422002
1977	2171.6040405272993
1978	2083.2219482421997
1979	1934.794982910198
1980	2151.681982421899
1982	2355.1176757812004
1983	2409.2868652343977
1984	2597.8633300780966
1985	2637.942138671902
1986	2402.1775390625003
1987	585.2042480468976
1988	3305.3435546875016
1989	3297.0470703125025
1990	-2709.222167968801
1991	-3228.0673828125
1992	-3498.014160156301
1993	-5007.991699218801
1994	-5734.954589843801
1995	-5494.619628906301
1996	-5401.580078125
1997	-4922.621582031301
1998	-5060.375
1999	-5314.569824218801
2000	-5763.205078125
2001	-3090.0537109375
2002	-3332.7763671875
2003	-2779.181640625
2004	-2966.9326171875
2005	-2041.320800781301
2006	-1493.310546875
2007	-1274.0791015625
2008	-514.3862304687937
2009	-971.9956054688009
2010	-6.929199218800932
2011	1470.1572265625
2012	-4701.1416015625
2013	-7703.912109375
2014	-7926.012207031301
2015	-9269.419921875
2016	-9394.695556640603