Year	thousand metric tons of CO2 equivalent
1969	0
1970	1.49643049433
1971	1.54083675433
1972	1.5655094209
1973	1.6166719821
1974	1.7047672861
1975	1.7543979451
1976	1.89481749283
1977	2.00644882453
1978	2.0189245969
1979	2.0414948599
1980	2.0995118869
1981	2.1741155817
1982	2.22293615397
1983	3.33850538324
1984	0.915439486248
1985	0.934025592203
1986	0.976253880026
1987	0.909664442773
1988	0.766965678571
1989	0.73431345945
1990	0.851253225818
1991	0.68889472426
1992	0.63970943885
1993	0.63110872817
1994	0.63379602517
1995	0.63222510017
1996	0.63259641817
1997	0.63763332917
1998	0.63970350917
1999	0.64005194917
2000	0.64272073917
2001	0.64276460417
2002	0.64403365117
2003	0.64670427017
2004	0.64713799117
2005	0.64713780517
2006	0.64744352717
2007	0.64759913694
2008	0.64782807194