Year	thousand metric tons of CO2 equivalent
1970	5572.1437133788995
1971	5529.496212768601
1972	5721.4416687012
1973	6324.676055908207
1974	6542.463194274902
1975	6079.662962341305
1976	7512.484115600597
1977	7593.1702026367
1978	7689.116479492197
1979	7974.2086669921955
1980	7880.720330810507
1981	7731.2473175049
1982	7711.285485839802
1983	8459.991204834001
1984	9093.205401611296
1985	9455.7058654785
1986	9601.019506835897
1987	12203.688293456999
1988	10751.899353027304
1989	11057.717309570295
1990	-712.816925048799
1991	-798.8359375
1992	-2435.784667968801
1993	-3007.931915283203
1994	-3538.5116577148
1995	-4314.013793945298
1996	-3852.6815795898
1997	-4664.554443359397
1998	-4604.851074218801
1999	-4218.004638671897
2000	-4530.532775878899
2001	-4391.567016601599
2002	-4282.659851074197
2003	-4945.078613281301
2004	-4868.184448242202
2005	-4433.169799804702
2006	-4229.2763061523
2007	-4238.845947265603
2008	-4974.847045898401
2009	-4065.916503906301
2010	-1934.5373535156032
2011	-2381.954589843801
2012	-1925.5859375
2013	-2740.199951171897
2014	-2682.948730468801
2015	-2791.275146484397
2016	-3686.011962890603