Year	kg per 2010 US$ of GDP
1960	0.273274623022579
1961	0.277451369228894
1962	0.277595601688046
1963	0.286785851558055
1964	0.336712345947056
1965	0.327298304921289
1966	0.341721138966778
1967	0.359763426831725
1968	0.3815980794288
1969	0.427362009107659
1970	0.396184046340991
1971	0.464411084155585
1972	0.501743866335223
1973	0.459408414730674
1974	0.45386168330632
1975	0.488211740996
1976	0.526539398744561
1977	0.490760289507814
1978	0.539524519553094
1979	0.507758877808246
1980	0.507250167102097
1981	0.519366611498517
1982	0.490608257894871
1983	0.504377117362088
1984	0.476018145887434
1985	0.494238540206186
1986	0.464457391917391
1987	0.483656754263488
1988	0.502483659212948
1989	0.561183803078891
1990	0.618226236890286
1991	0.612733154741075
1992	0.667946527467373
1993	0.753540353670996
1994	0.794124597447226
1995	0.865261136797767
1996	0.827249139307616
1997	0.877607831206798
1998	0.839223674245339
1999	0.794110533497127
2000	0.820924585511807
2001	0.628904763590438
2002	0.739984493840865
2003	0.768734791555343
2004	0.739402127791699
2005	0.776310472252612
2006	0.91532465399625
2007	0.716967226980219
2008	0.725046380503608
2009	0.741332822234951
2010	0.773723519352439
2011	0.781038671505019
2012	0.864814518980086
2013	0.815153872465815
2014	0.833925334047483