Year	kt of CO2 equivalent
1970	349.390182
1971	350.067507
1972	463.227556
1973	472.142676
1975	552.502523
1977	514.008008
1978	481.710219
1980	470.536422
1981	740.936054
1982	775.607286
1983	1016.175036
1984	971.145537
1985	683.181181
1986	577.379455
1987	578.208642
1988	792.222722
1989	932.164785
1990	652.962347
1991	581.547884
1992	465.680133
1993	471.025788
1994	491.291126
1995	496.769905
1996	504.096508
1998	461.718286
1999	492.033795
2000	518.971347
2001	510.111383
2002	527.096286
2003	543.012595
2004	591.967514
2005	584.756357
2006	600.515297
2009	561.263745445672
2010	594.651571750838
2011	614.875651538293
2012	632.876992070822