Year	thousand metric tons of CO2 equivalent
1970	588.9283085937086
1971	1020.8433554686999
1972	910.7377210937029
1973	1592.7441679687072
1974	1465.4921406250005
1975	1483.1593671874998
1976	1556.9150539062075
1977	1692.11857421871
1978	1676.5247773437122
1979	1636.5056367187108
1980	1446.022200781209
1981	1465.5835599999955
1982	1456.8571311718888
1983	1513.1829878125063
1984	1541.8338078125025
1985	1776.3033426562033
1986	1740.3583343749979
1987	3684.5060486718903
1988	1562.751533437502
1989	1446.5084501562023
1990	-2657.744140625
1991	-2430.5322265625
1992	-2556.15625
1993	-2551.059082031301
1994	-2910.67578125
1995	-2812.8642578125
1996	-2854.4306640625
1997	-2557.092285156301
1998	-2966.9453125
1999	-2851.408203125
2000	-2992.762207031301
2001	-3690.94140625
2002	-3248.934082031301
2003	-2511.1611328125
2004	-2616.908203125
2005	-2867.052246093801
2006	-3858.941650390603
2007	-2903.035400390603
2008	-1989.169433593801
2009	-1918.9445800781032
2010	-2438.260253906301
2011	-1357.640136718801
2012	-2416.232910156301
2013	-2555.645019531301
2014	-3680.338623046897
2015	-2620.030029296897
2016	-4904.4150390625