Year	metric tons per capita
1990	2.3493570676400615
1991	2.3543059663577557
1992	2.4680456453489557
1993	2.585456220030321
1994	2.7475490226863437
1995	2.7814261789161874
1996	2.7974913777602026
1997	2.8943115501409524
1998	2.769597705349753
1999	2.8147944511171583
2000	2.894059387225836
2001	2.980268797816379
2002	2.990929346275786
2003	3.026208372979173
2004	3.1552154514626944
2005	3.3320165708654663
2006	3.4301650129673287
2007	3.498334811335555
2008	3.567030200645619
2009	3.6271435582363836
2010	3.628420970340668
2011	3.581251881972057
2012	3.683919595644719
2013	3.6961486809149826
2014	3.7109067410602323
2015	3.610413752023589
2016	3.5915942855484206
2017	3.67311090654464
2018	3.6812353136379965
2019	3.5940458476525006
2020	3.368343759222434