Year	Kg co2 per 2011 PPP of GDP
1992	0.63927
1993	0.6629
1994	0.68314
1995	0.71528
1996	0.76573
1997	0.68366
1998	0.78514
1999	0.69873
2000	0.68777
2001	0.70565
2002	0.63364
2003	0.64107
2004	0.60608
2005	0.5833
2006	0.53802
2007	0.43857
2008	0.4118
2009	0.38234
2010	0.36586
2011	0.39056
2012	0.37429
2013	0.31829
2014	0.29393