Year	Mt of CO2 equivalent
1990	-0.05696935027635506
1991	-0.05696935027635506
1992	-0.05696935027635506
1993	-0.05696935027635506
1994	-0.05696935027635506
1995	-0.05696935027635506
1996	-0.05846294486352839
1997	-0.05846294486352839
1998	-0.05846294486352839
1999	-0.05783115986352839
2000	-0.05783115986352839
2001	-0.05783115986352839
2002	-0.05783115986352839
2003	-0.058927216363528385
2004	-0.06009336596352839
2005	-0.059000782163528394
2006	-0.060787182163528394
2007	-0.060779482163528395
2008	-0.060779482163528395
2009	-0.06076180000000005