Year	thousand metric tons of CO2 equivalent
1970	-6425.551628417999
1971	-6403.593193359401
1972	-6922.578254394501
1973	-7428.708300781299
1974	-7948.660285644501
1975	-5769.096840820299
1976	-5967.738398437499
1977	-6082.384245605501
1978	-6194.880310058601
1979	-6301.696655273401
1980	-6375.1778930663995
1981	-6201.064758300799
1982	-6032.632946777301
1983	-6026.813708496101
1984	-6106.151489257802
1985	-6113.4520629883
1986	-6033.573693847702
1987	-6326.486987304699
1988	-6023.2596557617
1989	-5963.7063476563
1990	-731.9904785155995
1991	-743.5241088867006
1992	19.750122070299767
1993	-18.610198974610284
1994	-5.510810852049872
1995	27.898475646969928
1996	58.720039367679874
1997	81.48194885253997
1998	89.83853912354016
1999	112.77703094482013
2000	109.09819030761992
2001	102.80267333984011
2002	162.99008178710983
2003	179.9400787353502
2004	193.9560546875
2005	206.92642211913972
2006	198.26110839844023
2007	237.50524902344023
2008	218.58898925780977
2009	208.49279785155977
2010	468.6383972167996
2011	477.4430847167996
2012	1254.0945739746103
2013	1329.7287139892596
2014	1320.55766296387
2015	1148.5704040527298
2016	722.1551208496103