Year	thousand metric tons of CO2 equivalent
1970	-616.719155273443
1971	-639.9515820312481
1972	-524.2070751953115
1973	-293.48496093750055
1974	-247.77204589839857
1975	-173.64411621089857
1976	-220.70202636720114
1977	-304.4351074218994
1978	-351.9628173827987
1979	-480.25092773439883
1980	-581.2499511719016
1981	-657.4136718750015
1982	-770.6141601563022
1983	-861.2079589843988
1984	-862.2277832030977
1985	-964.4076171875004
1986	-1048.0669921874996
1987	-1582.377978515602
1988	-1381.187548828102
1989	-1601.8130371094012
1990	-2814.2712402344005
1991	-1805.526855468801
1992	-1841.1979980469005
1993	-905.46484375
1994	-1494.173339843801
1995	-1102.9968261719005
1996	-1355.39453125
1997	-1601.9990234375
1998	-1564.0107421875
1999	-1614.5107421875
2000	-2014.809082031301
2001	-1591.315917968801
2002	-1728.8916015625
2003	-962.830078125
2004	-550.8676757813009
2005	-1532.6708984375
2006	192.94873046869907
2007	35.34423828119907
2008	1845.9501953125
2009	2422.9111328125
2010	2854.782714843699
2011	3425.3798828125
2012	4960.088378906199
2013	5369.21875
2014	4386.330566406199
2015	6184.521972656199
2016	5825.5361328125