Year	Mt of CO2 equivalent
1990	-10.41630744382143
1991	-8.48158689231334
1992	-9.178795561014159
1993	-9.299553544225082
1994	-9.382834431330002
1995	-9.46144671828954
1996	-9.1492071066472
1997	-9.47141111667947
1998	-8.813013917635478
1999	-4.522394376366747
2000	4.006473059601388
2001	4.2423247454870605
2002	2.643324851471586
2003	1.0569151790871711
2004	-5.713943376905261
2005	-8.665242215941385
2006	-1.5785859955278625
2007	-13.711587140843687
2008	-0.3263170269727401
2009	-7.034592560350076