Year	Kg co2 per 2011 PPP of GDP
1990	0.37957
1991	0.35679
1992	0.38548
1993	0.39
1994	0.38982
1995	0.38607
1996	0.38092
1997	0.38673
1998	0.37933
1999	0.35711
2000	0.3572
2001	0.37688
2002	0.35389
2003	0.36925
2004	0.3314
2005	0.30709
2006	0.32016
2007	0.3056
2008	0.32116
2009	0.29917
2010	0.30378
2011	0.29131
2012	0.31221
2013	0.26629
2014	0.24803