Year	thousand metric tons of CO2 equivalent
1970	800.6982621289171
1971	1098.7956355664119
1972	410.6709098388674
1973	-331.5519335889039
1974	-536.0659440917971
1975	-159.85105898926122
1976	1990.5578288916004
1977	-1459.1802331470026
1978	-2181.470607744104
1979	-2191.464962617203
1980	-2269.064510654309
1981	-1652.951636923799
1982	-1604.0378758104944
1983	-1832.5106699902008
1984	-1991.2585903003019
1985	-2078.534271562501
1986	-2161.559957299796
1987	-2394.978779287101
1988	-2326.8353225585997
1989	-2380.311670585901
1990	-4072.426879882798
1991	-4359.623229980498
1992	-4811.0722351074
1993	-4329.139724731402
1994	-3969.1409759520975
1995	-1139.9131622314017
1996	-2924.4090728759984
1997	-3252.352111816399
1998	-4091.841705322302
1999	-3809.4920043944985
2000	-2730.183898925796
2001	-1945.818908691399
2002	-1079.9944458007958
2003	1883.654174804702
2004	3070.825683593699
2005	3464.719421386704
2006	4681.312011718699
2007	7244.090698242202
2008	6583.134155273401
2009	6826.5859375
2010	5488.927001953096
2011	6458.200439453096
2012	7743.197998046904
2013	8441.258056640596
2014	8094.435791015596
2015	5850.063720703096
2016	5203.067138671904