Year	thousand metric tons of CO2 equivalent
1970	3834.910406484421
1971	239390.4972746005
1972	245495.63772979277
1973	269464.88796703756
1974	307130.3694754532
1975	298155.7946634909
1976	373255.7967448735
1977	393919.57321728504
1978	380329.1450920239
1979	480846.36101390165
1980	514302.1799622668
1981	545835.1159799828
1982	448767.7584684185
1983	466313.4708669813
1984	431185.28140209627
1985	440438.06824572576
1986	455515.9670063086
1987	223007.72912956876
1988	514475.5874147282
1989	600692.1611531947
1990	-367882.335854132
1991	-353185.5642229465
1992	-308375.581829384
1993	-286495.4190556198
1994	-316067.21531934827
1995	-348353.0477178075
1996	-312670.8120479807
1997	-210065.58167864452
1998	-205027.70547482983
1999	-211463.7189654908
2000	-293325.10376228305
2001	-294232.1516550779
2002	-368895.06898622075
2003	-340776.85533367406
2004	-314294.7884039061
2005	-273301.2733641323
2006	-231466.03114781657
2007	-193408.89378493145
2008	-191478.09538220917
2009	-125958.75608632618
2010	-138182.31020141538
2011	-160917.88273681107
2012	-94533.06258496612
2013	-44841.123253451326
2014	-92235.2753194872
2015	-38929.93451266046
2016	-28931.66179369396