Year	thousand metric tons of CO2 equivalent
1970	-334.2490765028492
1971	-333.3255573378069
1972	-372.0824243172192
1973	-373.3912869968417
1974	-398.61319314308184
1975	-473.21770068135174
1976	-455.2722685869214
1977	-583.0305701765069
1978	-525.3966096839904
1979	-555.0889190907474
1980	-572.2719250634182
1981	-557.2485112236027
1982	-597.9459246479037
1983	-218.5404517784118
1984	-253.90528998184254
1985	-200.98182672500616
1986	-401.00940502548156
1987	-521.7069216766367
1988	-308.7167332267768
1989	-326.5288678588854
1990	331.3791604042053
1991	441.88874197006226
1992	513.7803812026978
1993	542.8451147079468
1994	603.3355388641357
1995	35.880295753479004
1996	-3.199657440189185
1997	-14.85664367676145
1998	19.302822113040747
1999	36.60819435119993
2000	58.28587150574094
2001	72.41603946686155
2002	62.45659446715945
2003	72.74665451049805
2004	71.83723449707031
2005	60.07676887511843
2006	90.43590164184934
2007	264.10218048096067
2008	178.17054748535156
2009	791.9496154785193
2010	963.1781311035193
2011	961.6269836425781
2012	1049.2168273925781
2013	1133.2303771972693
2014	1365.05224609375
2015	3006.2834472656214
2016	3983.041870117191