Year	Kg co2 per 2011 PPP of GDP
1990	0.42644
1991	0.41884
1992	0.40867
1993	0.38752
1994	0.39134
1995	0.4282
1996	0.45318
1997	0.47868
1998	0.47008
1999	0.47767
2000	0.48917
2001	0.4971
2002	0.4702
2003	0.47241
2004	0.46639
2005	0.4548
2006	0.48397
2007	0.40059
2008	0.42719
2009	0.3386
2010	0.32394
2011	0.34291
2012	0.32768
2013	0.35361
2014	0.32209