Year	Kg co2 per 2011 PPP of GDP
1990	0.42563
1991	0.36654
1992	0.31725
1993	0.37137
1994	0.39735
1995	0.3922
1996	0.3619
1997	0.37121
1998	0.46224
1999	0.50858
2000	0.43185
2001	0.47293
2002	0.5812
2003	0.62611
2004	0.41808
2005	0.41235
2006	0.38535
2007	0.33609
2008	0.35563
2009	0.36878
2010	0.39368
2011	0.35342
2012	0.37611
2013	0.34341
2014	0.35985