Year	thousand metric tons of CO2 equivalent
1970	6.405461169242898
1971	6.905271545982398
1972	9.53744539059399
1973	8.043054019665693
1974	13.057661607301206
1975	8.243668092358103
1976	7.233848198080075
1977	5.915341312539606
1978	-22.23359964519741
1979	-7.272366377925909
1980	31.041133837377995
1981	1.4534192739129779
1982	28.11134837663171
1983	13.01399110132498
1984	-1.8645507137779944
1985	10.485256655335018
1986	25.949372761368803
1987	12.188554702996989
1988	27.800943317532997
1989	35.949748758196776
1990	13.679260924458504
1991	9.426880568266029
1992	6.88526925444603
1993	18.54671348631399
1994	28.756402313709316
1995	32.84727634489542
1996	28.182756245136034
1997	32.14294342696701
1998	15.315006449819009
1999	29.389451444149017
2000	20.65392380952801
2001	27.03637039661396
2002	53.85755836963699
2003	52.12085798382799
2004	56.29494528472401
2005	65.73020653426602
2006	84.875007271767
2007	107.48997846245771
2008	93.20743270218372
2009	82.937287479639
2010	74.950341567397
2011	76.10500673949701
2012	81.83302395045803
2013	70.192270919681
2014	61.75512836873497
2015	91.447328798473
2016	130.06087112426803