Year	metric tons per capita
1990	6.138336383195428
1991	6.5011450183466435
1992	6.264334019830742
1993	5.913504861743189
1994	5.806327697309776
1995	5.916383136615773
1996	6.157646394913841
1997	5.9886749268933785
1998	6.33269034381028
1999	6.1979538023833625
2000	6.126515444888777
2001	6.141051660859347
2002	6.004364484578598
2003	6.052955998340427
2004	6.026319534827194
2005	6.026677841714448
2006	5.842388180308746
2007	5.670764602966021
2008	5.564039942033898
2009	5.314137364754387
2010	5.350407865838492
2011	5.1271054462381365
2012	5.152358494014216
2013	5.127899427851661
2014	4.614807136082789
2015	4.675935086639064
2016	4.70347567349874
2017	4.747916928803333
2018	4.570517428451337
2019	4.46016494835631
2020	3.9536824518799136