Year	thousand metric tons of CO2 equivalent
1970	-180.25441169118892
1971	-174.19189947366698
1972	-94.33598303508819
1973	-172.903937054634
1974	-209.41966436672226
1975	-114.16639275836894
1976	87.80948339652986
1977	126.74953235817009
1978	10.394611547469822
1979	-24.34182304000916
1980	5.250635166167967
1981	-30.228402723312115
1982	119.62847748374895
1983	204.33687235069317
1984	233.30025089454705
1985	215.3202463293079
1986	229.63499633216912
1987	80.84389159774815
1988	296.64185889625526
1989	335.1513076038359
1990	701.7356626987462
1991	693.4648821353912
1992	634.0663812160492
1993	555.2619113922119
1994	893.6296972036362
1995	840.4408124685292
1996	615.8392890691762
1997	934.444358587265
1998	963.158805847168
1999	991.6642519235611
2000	778.5259203910828
2001	674.4894291162491
2002	671.0029439926147
2003	578.0128331184392
2004	570.0931370258331
2005	569.388177633286
2006	534.665399312973
2007	559.6689933538441
2008	511.6546473503113
2009	565.8281979560852
2010	470.0926427841191
2011	453.4821043014531
2012	499.89373403787613
2013	998.7094658017159
2014	394.37687265873
2015	469.1678613126278
2016	642.4279652833939