Year	thousand metric tons of CO2 equivalent
1970	43948.643710937504
1971	29489.8635984375
1972	36647.860109375
1973	29772.200182421897
1974	30667.014828125008
1975	41352.61121953121
1976	47890.79743515618
1977	36862.557051562515
1978	44608.24430234369
1979	47213.4168582031
1980	50478.53637500001
1981	45761.2318789062
1982	48275.991685546906
1983	49184.7983710937
1984	38833.09836328118
1985	41027.625923828076
1986	43556.840914062486
1987	51069.026253906195
1988	44844.1161953125
1989	42920.33295703118
1990	-2817.185546875
1991	-2769.728515625
1992	-2133.3974609375
1993	-2770.320800781308
1994	-1768.130859375
1995	-1829.9946289063082
1996	-1205.2978515625
1997	-1414.7138671875
1998	-2026.3232421875
1999	-1917.2573242188082
2000	-1704.9345703125
2001	-818.6069335938082
2002	-394.3266601563082
2003	-127.13427734380821
2004	107.7431640625
2005	-358.1118164063082
2006	854.0395507811918
2007	897.1831054686918
2008	1373.8232421875
2009	1381.6884765625
2010	4098.5498046875
2011	2509.6088867187063
2012	5022.608886718706
2013	7585.8623046875
2014	8138.6318359375
2015	7665.5966796875
2016	11462.40625