Year	Kg co2 per 2011 PPP of GDP
1992	0.75943
1993	0.7285
1994	0.67109
1995	0.62222
1996	0.60447
1997	0.61796
1998	0.5963
1999	0.53718
2000	0.56983
2001	0.55315
2002	0.52669
2003	0.51818
2004	0.47256
2005	0.45624
2006	0.43408
2007	0.41508
2008	0.38245
2009	0.37076
2010	0.37571
2011	0.35369
2012	0.33694
2013	0.33069
2014	0.31477