Year	thousand metric tons of CO2 equivalent
1969	0
1970	0.429550243344508
1971	0.425303502817499
1972	0.425681550935631
1973	0.428326627602155
1974	0.423119644855094
1975	0.421712675775449
1976	0.533706595410955
1977	0.533200220959393
1978	0.937741930185642
1979	1.03282757424937
1980	1.05942037149234
1981	1.14404451049009
1982	1.19449405523041
1983	1.17357704119363
1984	1.26122906208152
1985	1.38443712805853
1986	1.08878820994378
1987	1.3765294957816
1988	1.45235229654114
1989	1.5947325160483
1990	1.63350492122714
1991	1.62218681165316
1992	1.65503488736073
1993	1.72423059933148
1994	1.79456251370858
1995	1.79644703107078
1996	1.12858679502525
1997	5.39362560704714
1998	0.963800892002799
1999	0.883532980467603
2000	1.03063523314133
2001	1.01519766906726
2002	1.06061480082573
2003	1.02760149944227
2004	1.09693121479003
2005	1.10983294844038
2006	1.15786868001549
2007	1.30592435699838
2008	1.38292183727165