Year	thousand metric tons of CO2 equivalent
1970	-1896.2219416602004
1971	-1880.3168445117021
1972	-1901.2070959961002
1973	-1747.1785456641014
1974	-1604.665361953098
1975	-16634.1834112695
1976	-14250.5174128516
1977	-14581.2810779102
1978	-14929.490337539102
1979	-15935.732854628897
1980	-21835.891636367196
1981	-22596.9876208789
1982	-23340.621910429705
1983	-24069.6148492578
1984	-25139.1603747852
1985	-26242.3784358008
1986	-26699.5252241602
1987	-27407.345158242206
1988	-27086.459757851604
1989	-27467.1523359766
1990	-1001.2962646484011
1991	-982.0706787109011
1992	-481.81866455079944
1993	-473.76904296880093
1994	-1237.3518066406032
1995	-1096.1517333984011
1996	-1648.5152587890989
1997	-1235.2593994140989
1998	-1742.7144775390989
1999	-2410.0283203125
2000	-2103.787841796897
2001	-2256.390136718801
2002	-3155.2919921875
2003	-3762.77734375
2004	-3412.837402343801
2005	-3700.87109375
2006	-4359.498046875
2007	-3674.587402343801
2008	-6099.7255859375
2009	-4151.2607421875
2010	-3962.184082031301
2011	-3298.3974609375
2012	-2442.0166015625
2013	-2085.974609375
2014	-1432.841796875
2015	-6292.4521484375
2016	-6869.217285156294