Year	thousand metric tons of CO2 equivalent
1970	-3632.7384301757806
1971	-3541.89620605469
1972	-3696.40465454102
1973	-3786.7406079101593
1974	-3893.79064453125
1975	-5574.88717651367
1976	-5613.890283203132
1977	-5772.06270751953
1978	-5953.4534375
1979	-6044.128881835899
1980	-5855.9575622559005
1981	-5795.3784899902
1982	-6075.695810546901
1983	-5925.965783691401
1984	-5933.7826184082
1985	-5935.0930822754
1986	-5792.0713391113
1987	-5749.3942956543015
1988	-5811.6421411133
1989	-5800.3697241210975
1990	-1161.2362670898
1991	-1288.5089111327998
1992	-612.4569702148401
1993	-73.78076171875
1994	152.6588592529297
1995	391.02406311034974
1996	420.78495788574037
1997	371.5254364013699
1998	357.1846847534198
1999	310.8218688964798
2000	194.2078666686998
2001	156.45826721191042
2002	47.70558166503997
2003	-5.428443908689587
2004	-145.2200469970703
2005	-144.62611389159974
2006	-266.9537353515607
2007	-268.4329528808594
2008	-212.98342895507994
2009	-667.9522705078107
2010	-759.30618286133
2011	-651.54638671875
2012	-203.5359191894495
2013	-726.5285034179697
2014	-787.1477355957004
2015	-752.7296752929697
2016	260.2431030273401