Year	thousand metric tons of CO2 equivalent
1970	20.858564453120266
1971	51.083522949219855
1972	81.99968994140977
1973	110.99460449219066
1974	141.92254882812097
1975	169.3809863281208
1976	207.0886767578097
1977	237.31301269531036
1978	257.4020288085908
1979	297.15855224609004
1980	327.69539306640945
1981	348.8554248046894
1982	366.33879638671897
1983	414.0703442382812
1984	449.540786132809
1985	463.8016772460901
1986	488.8613916015595
1987	239.3414257812508
1988	559.9126562499991
1989	457.0427416992195
1990	-459.98779296875
1991	-182.5437316894504
1992	-59.987274169920056
1993	-77.89381408691042
1994	-142.33749389647983
1995	-70.56068420409974
1996	-30.73625183105014
1997	-28.314407348630084
1998	86.19131469727017
1999	45.259735107420056
2000	150.6560363769495
2001	-5.313842773439319
2002	-6.6241302490197995
2003	59.410003662110284
2004	79.30082702636992
2005	98.80537414550963
2006	151.18763732909974
2007	219.94317626953034
2008	248.67105793953033
2009	855.4529252052298
2010	809.1347999572799
2011	1014.1835403442401
2012	681.6436836719504
2013	715.2188396453903
2014	709.8863868713397
2015	403.39053225517
2016	11.681359529499787