Year	thousand metric tons of CO2 equivalent
1970	-20.78698303222987
1971	-20.675981445309958
1972	-23.786696777340268
1973	-29.00068969726985
1974	-20.280234374999793
1975	-43.87059326172033
1976	-46.247567138670036
1977	-52.91210937499983
1978	-50.422614746089835
1979	-47.73774658203007
1980	-53.19957519530999
1981	-39.79445068358973
1982	-42.2375268554693
1983	-51.69628173828005
1984	-74.31306640625087
1985	-83.67800781250014
1986	-99.25082275391071
1987	-558.956867675779
1988	-67.88784423827997
1989	-85.88151611327874
1990	-228.5556640625
1991	-362.0068969726999
1992	-101.92993164059953
1993	-267.87902832029977
1994	-65.298828125
1995	-133.9290771483993
1996	-253.48706054690047
1997	-90.98815917970023
1998	4.067138671900466
1999	62.0384521483993
2000	1149.4072265625
2001	1070.79296875
2002	683.6297607421984
2003	1347.5550537109011
2004	610.7813720703016
2005	589.5959472655995
2006	696.9031982421984
2007	855.4012451171984
2008	334.5413818359011
2009	606.0480957030995
2010	767.1428222655995
2011	1077.3731689453016
2012	3960.9490966796984
2013	4113.705078125
2014	4654.537231445302
2015	5507.621704101599
2016	4947.629394531199