Year	thousand metric tons of CO2 equivalent
1970	43218.818876977944
1971	272277.8763327806
1972	282593.5188113026
1973	297424.4765797599
1974	342252.4809344831
1975	342058.64980778634
1976	420023.23652391875
1977	432060.4849997714
1978	427761.9896973177
1979	537815.6280404316
1980	567524.0150801047
1981	569927.6963513719
1982	496168.02280846477
1983	489699.74925285013
1984	461007.11566789215
1985	476519.2809518178
1986	499515.8401904307
1987	281287.0533824989
1988	577240.5695953713
1989	663939.0186659036
1990	-372784.34796843654
1991	-369058.33302855643
1992	-332991.98240294476
1993	-294215.8063489919
1994	-317953.92667369917
1995	-350917.23506851366
1996	-299002.87328376865
1997	-170178.24148445198
1998	-168751.31979637226
1999	-178982.46077041782
2000	-245031.68040838308
2001	-246753.07871389465
2002	-317393.2869774826
2003	-265589.61709833203
2004	-274142.06776361703
2005	-238386.38879327872
2006	-191482.96909723402
2007	-148882.35724601932
2008	-139138.6109878548
2009	-73216.53123340695
2010	-96733.98880552959
2011	-125920.98952319691
2012	-109084.78524147873
2013	-62037.313549995975
2014	-110742.25652337127
2015	-33496.75929975501
2016	10633.361808538131