Year	thousand metric tons of CO2 equivalent
1970	390827.9723359373
1971	384113.84374075144
1972	427262.45073378895
1973	363571.58993310545
1974	334283.4953616212
1975	300723.4381411616
1976	309383.52992382733
1977	301565.65747707995
1978	161189.87081572245
1979	156739.29820341736
1980	105564.6000979488
1981	117929.73988979895
1982	94543.140598417
1983	57824.35407866227
1984	44343.935384794764
1985	29763.833964354588
1986	6501.8386167275885
1987	-66891.14724508896
1988	-32932.12956564451
1989	-37174.34993185682
1990	-307367.7197570811
1991	-268482.4895935068
1992	-214457.71560669006
1993	-195056.4663543713
1994	-195585.35672760033
1995	-216488.85829925572
1996	-193640.7355270384
1997	-190227.90347290016
1998	-200869.66010284482
1999	-214389.0836791987
2000	-218446.26352310204
2001	-220138.89878845238
2002	-219341.13714599615
2003	-264147.31374359224
2004	-248722.84475708072
2005	-253650.1290283208
2006	-234830.41501617487
2007	-242122.42813110416
2008	-196420.05312419045
2009	-194260.58181905802
2010	-184278.70782089295
2011	-185662.3832321178
2012	-177721.0748221872
2013	-180313.94700813264
2014	-154900.0048637389
2015	-175803.76562619233
2016	-150928.76108431787