Year	kg per 2010 US$ of GDP
1964	1.05101619223263
1965	1.16769635240532
1966	1.33378547601865
1967	1.07853958392942
1968	1.27436553882427
1969	1.19859825262949
1970	1.18243699123589
1971	1.16268237458159
1972	1.0098021043876
1973	1.11053391426586
1974	1.01642880476131
1975	0.952102594168522
1976	1.23797923359264
1977	1.13723824084304
1978	1.168417971847
1979	1.14986492257196
1980	1.02483330062244
1981	0.891696357830392
1982	0.811406467082744
1983	0.948321451939818
1984	0.916948982451167
1985	0.886874729900353
1986	1.11101723561609
1987	1.27510003089588
1988	1.25259926185679
1989	1.19692315183892
1990	1.08122847902686
1991	1.04496666194811
1992	1.22453343058762
1993	1.16555629122465
1994	1.16051664708572
1995	0.985109601329674
1996	0.884622548491353
1997	0.827817399195848
1998	0.796001903112743
1999	0.891555858489244
2000	0.808723144198281
2001	0.721237704360088
2002	0.752007008360725
2003	0.806856981381204
2004	0.762572661316056
2005	0.918180584219079
2006	0.922605500523082
2007	0.906163896808891
2008	0.865075774401659
2009	0.556868542809714
2010	0.645900158310462
2011	0.695487541651143
2012	0.485734018722423
2013	0.713603897687845
2014	0.717614167831443