Year	thousand metric tons of CO2 equivalent
1970	901.3494140625062
1971	1426.631582031212
1972	1175.7107187499932
1973	1101.512734375001
1974	1339.2561132812061
1975	1934.9607421875062
1976	1885.7417968750033
1977	1944.3058593749993
1978	2358.506542968704
1979	2448.2809570312093
1980	2380.2480468749945
1981	2542.3406250000025
1982	2511.9093749999993
1983	2343.4022460937067
1984	2586.6730468749956
1985	2311.9240234374956
1986	2599.8252929687114
1987	1313.0144531250062
1988	2486.0942382812027
1989	2396.4931640625
1990	-3360.2548828125
1991	-2628.4853515625
1992	-2395.062011718801
1993	-2822.664550781301
1994	-3257.3720703125
1995	-3202.585449218801
1996	-3334.922363281301
1997	-3621.1455078125
1998	-3015.594238281301
1999	-2653.19140625
2000	-2798.529296875
2001	-2425.48828125
2002	-2304.248046875
2003	-2158.314941406301
2004	-1829.758300781301
2005	-2332.145019531301
2006	-2672.805175781301
2007	-2553.5830078125
2008	-2279.595214843801
2009	-1518.912597656301
2010	-2239.983886718801
2011	-1245.526855468801
2012	-3733.318603515603
2013	-4982.701171875
2014	-3962.9228515625
2015	-4082.138671875
2016	-4678.898925781301