Year	Kg co2 per 2011 PPP of GDP
1990	0.26804
1991	0.33588
1992	0.34443
1993	0.38378
1994	0.37452
1995	0.28538
1996	0.30594
1997	0.25289
1998	0.23605
1999	0.26746
2000	0.33201
2001	0.3364
2002	0.38016
2003	0.34264
2004	0.38388
2005	0.36527
2006	0.38673
2007	0.34026
2008	0.35526
2009	0.39544
2010	0.41622
2011	0.36481
2012	0.39106
2013	0.36474
2014	0.39091