Year	thousand metric tons of CO2 equivalent
1970	-106.53119204139603
1971	-107.14099146270837
1972	-120.46588357925339
1973	-115.63233496665907
1974	-115.32534450721778
1975	-132.1446739349367
1976	-127.76931580352812
1977	-135.57160131454475
1978	-142.9914261741642
1979	-173.80015851211465
1980	-178.2576046638469
1981	-182.91199559783854
1982	-186.7260857238789
1983	-169.63381645393383
1984	-213.17063644790687
1985	-214.15672117996291
1986	-170.74186828422535
1987	-251.8599378623967
1988	-277.85781161308296
1989	-282.96528569984366
1990	-16.929574012756348
1991	-65.63395547866821
1992	-59.99651765823364
1993	-37.68645143508911
1994	-168.17578983306885
1995	-190.1835880279541
1996	-167.93896198272705
1997	-237.98298835754395
1998	-130.85887241363525
1999	-139.7463903427124
2000	-62.95726203918457
2001	-85.36903858184814
2002	-80.54425621032715
2003	-20.448909759521484
2004	-49.3583869934082
2005	-8.546501159667969
2006	14.395000457763672
2007	-14.892303466796875
2008	105.46659088134766
2009	192.73147583007812
2010	196.13651275634766
2011	13.956501007080078
2012	-36.19479751586914
2013	-40.32733154296875
2014	-71.45373153687251
2015	-135.86576461791992
2016	-70.94107818603516