Year	metric tons per capita
1990	9.813068799093118
1991	9.937877642166253
1992	9.688810439357475
1993	9.379580736294187
1994	9.248704911688252
1995	9.079920846660137
1996	9.377801311569543
1997	8.988658769797887
1998	8.993440113614033
1999	8.908156654493695
2000	9.014527720789776
2001	9.223024626675455
2002	8.940232737552952
2003	9.10409319728109
2004	9.0530899520495
2005	8.955400658721947
2006	8.908613465748909
2007	8.651030536721919
2008	8.337820015355867
2009	7.490694288530768
2010	7.689567493672765
2011	7.044843240016688
2012	7.3442609259639084
2013	7.076100427653806
2014	6.433346999513857
2015	6.159376360596121
2016	5.824502691163131
2017	5.553291497208572
2018	5.425128404391046
2019	5.175842472612237
2020	4.601142250901347