Year	Mt of CO2 equivalent
1990	-15.038181846162766
1991	-29.065030862393083
1992	-23.10312541954192
1993	-20.861767624688614
1994	-13.442149325966149
1995	-13.291715451729278
1996	-22.6839902483316
1997	-18.814135590066424
1998	-16.9098635834582
1999	-19.74709655576901
2000	-20.936891516505764
2001	-24.346230774492074
2002	-24.63606085493818
2003	-24.991934722616808
2004	-24.940128605888404
2005	-27.663455703743136
2006	-31.224313565288824
2007	-23.339537660888396
2008	-27.01048517719711
2009	-40.55841850284908