Year	metric tons per capita
1990	2.377151666831096
1991	2.452136747107067
1992	2.5092039913732562
1993	2.632591395606366
1994	2.727093183656372
1995	2.9173920031101974
1996	2.9215834460222707
1997	2.954445936525819
1998	2.9184761965095047
1999	2.9085480869733735
2000	3.021744384129422
2001	3.106576743888904
2002	3.245427141290024
2003	3.5477505008420547
2004	3.8870418622239584
2005	4.209175650663748
2006	4.473746532011704
2007	4.745310361027456
2008	4.795390216179027
2009	4.973114486454391
2010	5.367568558807961
2011	5.7525415901140216
2012	5.857653367130231
2013	6.010372791980805
2014	5.987349436594126
2015	5.888062700283218
2016	5.864093602569556
2017	5.960075854127193
2018	6.166087324984276
2019	6.246453474881764
2020	6.221888395314452