Year	kg per 2010 US$ of GDP
1982	0.327439358496794
1983	0.326034034515144
1984	0.3218895199651
1985	0.309748922237384
1986	0.293588133439026
1987	0.292176639668614
1988	0.296452371386126
1989	0.304297083376467
1990	0.270135367449922
1991	0.286369579586944
1992	0.296838040113664
1993	0.285147046309364
1994	0.302337662775906
1995	0.292565703292576
1996	0.290029911324064
1997	0.296651473737521
1998	0.298573873021365
1999	0.300304617909078
2000	0.296053948115873
2001	0.283940284172336
2002	0.272119428197018
2003	0.273380940267377
2004	0.255074662167894
2005	0.262814786013166
2006	0.263598108856349
2007	0.258941628796079
2008	0.267263501179653
2009	0.292223097470726
2010	0.290829562283538
2011	0.296505993833594
2012	0.289949080018538
2013	0.295666859468103
2014	0.291593996964568