Year	Mt of CO2 equivalent
1990	-2.725002924294438
1991	-2.589388625228168
1992	-2.008575495391032
1993	-3.7031970870431397
1994	-4.538680714320433
1995	-3.4607271999894076
1996	-3.295640365012267
1997	-1.989885634036305
1998	-1.8876214572484695
1999	-0.7044022631496654
2000	1.4418838726498386
2001	1.8943575435193352
2002	1.6338432774131637
2003	-1.1675995666396728
2004	-0.4542085094361665
2005	-0.3732889650861965
2006	0.9521850273901339
2007	0.5688488721026356
2008	0.5741344542860448
2009	0.08855967096643232