Year	kg per 2010 US$ of GDP
1965	0.584658795316492
1966	0.647217278708942
1967	0.600867980196474
1968	0.683464628541527
1969	0.617434944585208
1970	0.59386454004584
1971	0.578977575595322
1972	0.531920719402653
1973	0.575261353252002
1974	0.556731909970801
1975	0.565764521825328
1976	0.581985137968943
1977	0.611860857109661
1978	0.695193684961561
1979	0.748417617800585
1980	0.791979444326745
1981	0.743566121818296
1982	0.688670083313204
1983	0.73388703220804
1984	0.806784878068165
1985	0.81464911133526
1986	0.858071553381684
1987	0.895904353660061
1988	0.971125897192351
1989	0.973727332177699
1990	0.859221460539332
1991	0.925008640431675
1992	0.911641907893268
1993	0.938297561492952
1994	0.9862509183348
1995	1.00355562177664
1996	0.957243795584694
1997	0.918067001619243
1998	0.965929832035139
1999	1.00308605011008
2000	0.966959732178191
2001	0.974710919761827
2002	0.946814097537083
2003	0.986148273156642
2004	0.968578693014563
2005	0.984063938364502
2006	0.963829281869176
2007	0.912798699160267
2008	0.94289158464814
2009	0.954394360546149
2010	0.926186863533695
2011	0.953178267056827
2012	0.970133788131353
2013	0.968912908145157
2014	0.969501528900404