Year	metric tons per capita
1990	6.232880993733375
1991	6.293830777934116
1992	6.546546075382206
1993	6.48098923664123
1994	6.661029331793601
1995	6.596952805496899
1996	7.199119375437027
1997	6.486683000865244
1998	6.594008749771494
1999	6.46485827186072
2000	6.005054716978792
2001	5.9012518041897675
2002	6.053104115447938
2003	6.162233628990729
2004	5.959094375724063
2005	5.54650873817718
2006	5.366981241682043
2007	5.143619019135357
2008	4.991877662862432
2009	4.5986590331897075
2010	5.116747205145249
2011	4.704307120603589
2012	4.4116976599511695
2013	4.206927664001598
2014	4.0215096569655255
2015	3.9921785340129268
2016	3.8991100046003835
2017	3.7949240472322785
2018	3.5297439444516847
2019	3.401593966350637
2020	3.242989143127474