Year	Kg co2 per 2011 PPP of GDP
1990	0.02162
1991	0.00919
1992	0.01088
1993	0.01403
1994	0.01426
1995	0.0151
1996	0.01674
1997	0.01817
1998	0.01786
1999	0.0193
2000	0.02124
2001	0.01863
2002	0.01681
2003	0.03312
2004	0.02455
2005	0.02214
2006	0.0224
2007	0.02462
2008	0.02636
2009	0.02438
2010	0.02259
2011	0.02353
2012	0.02456
2013	0.02657
2014	0.0259