Year	thousand metric tons of CO2 equivalent
1970	-679.9158970260605
1971	-584.2660239791899
1972	-365.0309814453108
1973	-295.7562841796903
1974	-67.27859046936146
1975	-887.2323947753903
1976	-824.0528984374996
1977	-357.9534545898391
1978	-2135.1182739257806
1979	-1357.8400668334998
1980	-328.321204528811
1981	-321.66740600585945
1982	-450.7822332763676
1983	-419.1037005615199
1984	-454.1072595214778
1985	-170.09898925781
1986	-18.963532714839857
1987	-119.1234045410215
1988	97.03265808105016
1989	84.75115905761959
1990	935.0644073486292
1991	765.9382629394495
1992	-263.0768203735406
1993	-325.70899963378906
1994	-650.3169021606409
1995	-1003.0307540893591
1996	-1066.260746002201
1997	-1008.4835243225098
1998	-992.5396156310999
1999	-1274.8111000060999
2000	-1556.0728416442907
2001	-1452.0853309631311
2002	-1189.8281898498499
2003	-1123.43363571167
2004	-1604.836013793949
2005	-1272.7878952026404
2006	-1163.7289772033691
2007	-381.2660675048792
2008	613.0169792175293
2009	1144.7717514038086
2010	2581.595874786377
2011	5607.860027313232
2012	3299.1619606018066
2013	714.0560150146484
2014	-416.53784942626953
2015	-691.2025146484375
2016	-1800.0035781860352