Year	kg per 2010 US$ of GDP
1999	0.963257218533187
2000	0.980995253295341
2001	1.01950712823083
2002	1.02364851578138
2003	0.931030987701726
2004	0.912869625121609
2005	0.844346964851739
2006	0.810496168039335
2007	0.714714689800541
2008	0.780507203285926
2009	0.814329572421901
2010	0.828653796577389
2011	1.40009207830429
2012	0.83260303632761
2013	1.02919281532471
2014	1.3717640305013