Year	kg per 2010 US$ of GDP
1992	2.97640318502265
1993	2.51405834382374
1994	3.60017011412684
1995	3.93337135689681
1996	3.32537911263162
1997	3.74741597075495
1998	3.66700292531039
1999	3.69538638576504
2000	3.49080536578652
2001	3.3931960008
2002	3.5526895668891
2003	3.83921173307316
2004	3.81540317337042
2005	3.50576216713347
2006	3.23579286432436
2007	3.29789096335825
2008	2.91568040539691
2009	2.43419938177903
2010	2.53682595087163
2011	2.41159824553227
2012	2.25424515558849
2013	2.10433409898798
2014	1.95605030670549