Year	Mt of CO2 equivalent
1990	3.154520233582631
1991	1.9467066059345794
1992	3.7162455110111803
1993	0.467561093257478
1994	2.344452057781708
1995	1.6759137186174398
1996	0.5111651960378566
1997	1.7126834741422101
1998	0.6848323096266059
1999	2.793760736291655
2000	2.9143629401316757
2001	2.7821958472435977
2002	3.6461308087131417
2003	2.901650790942783
2004	2.299888412937972
2005	3.5893178500441567
2006	2.9137848443844496
2007	-0.08749201806437755
2008	-2.115211756536629
2009	-1.1189115940287921