Year	metric tons per capita
1990	2.562358002819446
1991	2.5992959802080837
1992	2.6606000063550104
1993	2.715363695146091
1994	2.6380115535443216
1995	2.835327724296688
1996	3.0739104689826577
1997	3.1566012580228158
1998	3.111837106539479
1999	3.0489756252273557
2000	3.3752071149643306
2001	3.039264895703711
2002	3.153687171991953
2003	3.2775139942411635
2004	3.3134314596539136
2005	3.420478492633293
2006	3.7511293066757787
2007	4.118808100195171
2008	4.042198693745135
2009	4.002087418897982
2010	4.071715146464795
2011	4.292988692320609
2012	4.387019247556798
2013	4.190394699642893
2014	4.4268354475513965
2015	4.518290364608087
2016	4.747839002218549
2017	5.20587915001934
2018	5.086919580237641
2019	4.828961058587949
2020	4.885863926083305