Year	thousand metric tons of CO2 equivalent
1970	0.5853912353500164
1971	0.8677899169899774
1972	3.225027465820176
1973	5.798466796870343
1974	3.3888104248001127
1975	5.137318115229846
1976	5.779552001949696
1977	6.250548095700196
1978	8.485371093750246
1979	15.014146728520018
1980	10.694858398439465
1981	12.497655029299949
1982	10.680552978521064
1983	16.219854736329353
1984	11.321165771478945
1985	7.093115234370089
1986	6.116723632810135
1987	-506.0575756835906
1988	0.7879846191403885
1989	1.4509619140605992
1990	-216.56707763671966
1991	-147.83700561523074
1992	-221.42364501952943
1993	-298.65524291992006
1994	-1149.8151245117206
1995	-917.5991821289008
1996	-954.5050659179997
1997	-1029.731933593799
1998	-942.7301025391007
1999	-1129.764160156299
2000	-1365.3797607422002
2001	-1204.08203125
2002	-1181.3006591796984
2003	-1576.52734375
2004	-1474.894042968801
2005	-1985.48828125
2006	-2731.7844238280995
2007	-4002.375
2008	-2706.510253906301
2009	-1176.861328125
2010	-2812.4248046875
2011	-1569.001953125
2012	-2348.312011718801
2013	-3008.557128906301
2014	368.9013671875
2015	-10730.0827636719
2016	-14417.9899902344