Year	kg per 2010 US$ of GDP
1984	0.781174500672418
1985	0.907569377747359
1986	0.963250696973365
1987	1.0458541089202
1988	0.888019103880065
1989	0.624712844140365
1990	0.726715862528
1991	0.687244078890244
1992	0.63331012799948
1993	0.627725250781616
1994	0.657550091710527
1995	0.665738129680224
1996	0.725608624747727
1997	0.872814086568121
1998	0.86939405544886
1999	0.832921639278496
2000	0.877314611903907
2001	0.941583889886901
2002	1.02562058807693
2003	1.06730200225647
2004	1.14096249078608
2005	1.14987129170572
2006	1.12526950724621
2007	1.07212561157367
2008	1.14162241453806
2009	1.18084309189529
2010	1.23122419330998
2011	1.23548057244819
2012	1.09713628268357
2013	1.07736474518235
2014	1.15242308491967