Year	thousand metric tons of CO2 equivalent
1970	26.949804077149793
1971	33.37050842285021
1972	26.493429565429324
1973	43.907627563480446
1974	46.37243652344023
1975	49.489610290529754
1976	63.5334771728501
1977	80.31868347168052
1978	99.99477478026938
1979	101.71533248901005
1980	115.24436210632007
1981	84.67498046874971
1982	88.72861633301068
1983	81.11397338866982
1984	78.25071319579934
1985	97.92320861815938
1986	91.7713171386697
1987	-280.27971130371
1988	96.88771850586022
1989	93.31023864746021
1990	-176.68513488769986
1991	-211.41015625
1992	-337.5843811035202
1993	-73.76577758789062
1994	-185.98500061034974
1995	-118.18585205078034
1996	-110.98818969727017
1997	-195.05206298828034
1998	-117.83547973632994
1999	-112.177734375
2000	-60.52304077147983
2001	-217.48400878905977
2002	-180.28762817382994
2003	63.67095947265989
2004	175.92672729492006
2005	105.51580810546966
2006	112.62829589844023
2007	100.36099243163972
2008	155.83056640625
2009	-77.12622070312955
2010	38.04516601562045
2011	80.9900207519504
2012	-87.90298461913972
2013	-197.18084716796966
2014	-12.263092041020172
2015	457.2413024902298
2016	616.2342834472702