Year	kg per 2010 US$ of GDP
1995	0.42934515965318
1996	0.404825407972273
1997	0.423272853523202
1998	0.442937591915959
1999	0.443540836620645
2000	0.413461588018517
2001	0.421488206172768
2002	0.421618372342381
2003	0.427425971542985
2004	0.400431038638726
2005	0.388343559762143
2006	0.370557621381899
2007	0.370972257613304
2008	0.344712910441799
2009	0.348347569595172
2010	0.336955445250707
2011	0.332020852792176
2012	0.308698936120151
2013	0.302574744467356
2014	0.290627468067073