Year	Mt of CO2 equivalent
1990	-13.805753929054683
1991	-13.672037856356472
1992	-13.338869489738233
1993	-12.621441523880009
1994	-12.400177980621779
1995	-12.885643512283552
1996	-11.871057008693317
1997	-11.93673779387509
1998	-11.931260015976864
1999	-11.943839892638636
2000	-10.27630977483641
2001	-10.605193980298008
2002	-11.109274141010768
2003	-11.120953089807854
2004	-11.441007159687363
2005	-11.336145509920474
2006	-11.405600167600033
2007	-10.254713536765003
2008	-11.565807708632242
2009	-11.781876909157132