Year	thousand metric tons of CO2 equivalent
1970	4414106.282482466
1971	3133478.382683761
1972	3862099.261258037
1973	3710708.5419012867
1974	3146001.2220304864
1975	3423756.7831997164
1976	3573947.247796062
1977	4003703.6669399324
1978	3937609.303171027
1979	4431979.388984521
1980	4414897.111783167
1981	3959983.5137990247
1982	5664367.907011781
1983	5182625.824451207
1984	3810375.2511131004
1985	3709187.066001548
1986	4098157.792508809
1987	5136001.401317268
1988	3903672.2751759635
1989	3867700.926281259
1990	-670655.1582818961
1991	-614125.3687657071
1992	-567986.0496135065
1993	-614825.9561246152
1994	-676749.3617477929
1995	-729858.7187684707
1996	-716681.8553646151
1997	-714905.7111259393
1998	-680289.1548607426
1999	-712611.635919201
2000	-747128.4767406085
2001	-666108.3430940256
2002	-645947.1183992152
2003	-736776.7987570936
2004	-693851.2122724531
2005	-693834.284664231
2006	-730990.5547508327
2007	-756335.237536615
2008	-665917.3752758838
2009	-695860.9664350552
2010	-620691.7927954891
2011	-541759.5595448853
2012	-380779.524362927
2013	-401157.4186737588
2014	-514042.6058149794
2015	-575239.7611433996
2016	-630425.9955284719