Year	kg per 2010 US$ of GDP
1995	0.838931754337667
1996	0.774552425850162
1997	0.697397022161094
1998	0.685241704303025
1999	0.585931115483253
2000	0.501288673872202
2001	0.498534198350244
2002	0.476266006655066
2003	0.420400665522346
2004	0.407531996148008
2005	0.397046657517621
2006	0.376493273860682
2007	0.363057063117163
2008	0.35008210309379
2009	0.342786956522724
2010	0.362842218717953
2011	0.350269392841263
2012	0.338435502834973
2013	0.298821003488208
2014	0.293132460116656