Year	kg per 2011 PPP $ of GDP
2000	0.363843804033529
2001	0.369329505453084
2002	0.360110246129009
2003	0.363226005210722
2004	0.337822495476195
2005	0.344710669234622
2006	0.33733149829381
2007	0.337716283452057
2008	0.324567591096552
2009	0.309856771394568
2010	0.30434499817732
2011	0.298359737768521
2012	0.303500756500538
2013	0.287243605333126
2014	0.320990057876487