Year	kg per 2011 PPP $ of GDP
1995	0.965506078578131
1996	1.05604197407682
1997	0.640155544960279
1998	0.605007388635781
1999	0.449617400304513
2000	0.343519733739079
2001	0.342357811648495
2002	0.340785870874514
2003	0.344096847507297
2004	0.34010431905625
2005	0.340066109079434
2006	0.33105329298275
2007	0.301116291739988
2008	0.285239215612018
2009	0.289007256209387
2010	0.292462224198082
2011	0.282341030186522
2012	0.277608039867144
2013	0.25837509201172
2014	0.242822721552605