Year	metric tons per capita
1990	2.3290481977910775
1991	2.3336010811867975
1992	2.445900795865163
1993	2.5617151240096074
1994	2.721704682192
1995	2.754638861638737
1996	2.769883044822622
1997	2.865034711292573
1998	2.7414229852117846
1999	2.7859906064970317
2000	2.8642710433294423
2001	2.9494126947887755
2002	2.9597292554563377
2003	2.994393972773904
2004	3.1218361632574245
2005	3.2965504221107627
2006	3.3934200131273653
2007	3.4606129456915733
2008	3.5282383441839316
2009	3.5873993235797874
2010	3.5884056701206446
2011	3.541494485741754
2012	3.64276193770441
2013	3.6546741562255782
2014	3.6691351287312792
2015	3.5696433829297134
2016	3.5508602939773692
2017	3.631326732106727
2018	3.6390141152912325
2019	3.552494178648336
2020	3.329056087023252