Year	metric tons per capita
1990	10.294108722316889
1991	8.273717631785175
1992	6.82956599647603
1993	5.85383907648773
1994	4.764210629181641
1995	4.1113029933631315
1996	3.529577819375271
1997	3.2626200742198046
1998	2.946654551760392
1999	2.508818946967572
2000	2.294140736657973
2001	2.4048921657154314
2002	2.467004535641971
2003	2.674774507284725
2004	2.6850270180865277
2005	2.8299212353127485
2006	2.7682024820138516
2007	2.831716533318211
2008	2.840876412116007
2009	2.6658052996408994
2010	2.897999339005588
2011	2.916944425121273
2012	2.844887502254989
2013	2.5114021117949
2014	2.698635146081884
2015	2.8281601620322867
2016	2.9049089143567355
2017	2.926840953560718
2018	3.1604205521344353
2019	3.348667379319457
2020	3.2678463681108716