Year	Mt of CO2 equivalent
1990	2.6918635446901997
1991	2.332014316601998
1992	2.612603255161806
1993	2.4163922984077035
1994	2.3886320716377436
1995	2.5395431971160733
1996	2.3714553313114797
1997	2.6448209008373316
1998	2.5528324823536463
1999	2.589308634836312
2000	2.5758277655962307
2001	2.273576332760934
2002	2.2416243619623706
2003	2.5943249191674114
2004	2.5578100824075745
2005	2.6873779673981257
2006	2.675303446273726
2007	2.506586525263178
2008	2.668033639124337
2009	2.475029379506962