Year	Kg co2 per 2011 PPP of GDP
1990	0.86025
1991	0.90546
1992	0.85515
1993	0.89894
1994	0.91992
1995	0.95287
1996	0.91892
1997	0.94862
1998	0.92319
1999	0.89598
2000	0.8681
2001	0.83021
2002	0.76767
2003	0.84567
2004	0.90028
2005	0.79195
2006	0.80565
2007	0.79656
2008	0.82188
2009	0.84537
2010	0.77312
2011	0.74298
2012	0.7241
2013	0.70293
2014	0.7248