Year	kg per 2010 US$ of GDP
1992	1.59791370890732
1993	1.65697845946808
1994	1.70756563650188
1995	1.7879036446369
1996	1.9140109834769
1997	1.70888144920348
1998	1.96254554297742
1999	1.7465401392987
2000	1.71914055500181
2001	1.76383630881372
2002	1.58384867286359
2003	1.60240940520577
2004	1.51496632203668
2005	1.45800718862022
2006	1.34484088238588
2007	1.09624650851015
2008	1.02933563133818
2009	0.955683117719955
2010	0.914492157217994
2011	0.976237878820628
2012	0.935557503943849
2013	0.79558332963359
2014	0.73471322703501