Year	thousand metric tons of CO2 equivalent
1970	1241.47998529053
1971	1693.5881685180698
1972	1794.43200280762
1973	1903.89531054687
1974	2373.6458132324215
1975	2507.46582177734
1976	2255.0035150146496
1977	2740.7963566894487
1978	2873.4275205688505
1979	4125.424714172359
1980	3588.76229370117
1981	3004.642195434571
1982	4969.35736999512
1983	3708.38486206055
1984	4210.9114160156205
1985	4347.38337234497
1986	4852.94619186401
1987	5167.950014343261
1988	5529.50215621948
1989	4930.78014801025
1990	141.84823989867982
1991	121.92613220215026
1992	128.49254608153933
1993	167.38751220702943
1994	137.37016296387083
1995	172.3834075927698
1996	23.20959472656068
1997	74.2236328125
1998	87.25613403319949
1999	119.59243774413972
2000	225.57214355469023
2001	170.22430419921875
2002	177.54125976562136
2003	153.18469238280886
2004	244.1962280273401
2005	-474.0601196289099
2006	1190.71087646484
2007	132.97692871093932
2008	495.6668701171893
2009	528.0521240234411
2010	729.3908081054688
2011	1149.36761474609
2012	1333.4744262695294
2013	1543.2564697265607
2014	1533.83544921875
2015	1734.3673095703107
2016	1159.7208862304706