Year	metric tons per capita
1990	18.978057684710606
1991	18.5742231088549
1992	18.621188814600842
1993	18.766739824491477
1994	18.83583717292831
1995	18.823845985119668
1996	19.177100371646773
1997	19.893254800532723
1998	19.849465146737813
1999	19.719693378572938
2000	20.10169960258282
2001	19.790640419104793
2002	19.173889649918497
2003	19.276784778712308
2004	19.318201196772204
2005	19.22536422306657
2006	18.7109189902055
2007	18.875627747017152
2008	18.105553479540323
2009	16.67656600399908
2010	17.266256594396694
2011	16.54095876465003
2012	15.781592424426657
2013	16.0812758463026
2014	16.0192168692016
2015	15.566101047696929
2016	15.174438757909904
2017	14.893774291042664
2018	15.261702902198953
2019	14.70909948152871
2020	13.087531018117595