Year	metric tons per capita
1990	7.453966439959862
1991	7.1595725661161005
1992	8.617281107551426
1993	6.411378555798687
1994	4.411910669975186
1995	4.225833946010658
1996	3.502937008888316
1997	3.3795298695499634
1998	3.347718943510679
1999	3.27233096364035
2000	3.440001987923366
2001	3.254413650261367
2002	3.20334803810596
2003	3.4696445270278478
2004	3.408403057846265
2005	3.580068757187033
2006	3.593402125039042
2007	3.2195238483679627
2008	3.4744049113357827
2009	2.849570532509288
2010	2.6851124964271245
2011	2.974147620178256
2012	3.239167347261941
2013	3.285574368620511
2014	3.3815556221401
2015	3.292794813656186
2016	3.3039578954790274
2017	3.243037647631178
2018	3.292641248978472
2019	3.543495330289458
2020	3.39884957289227