Year	metric tons per capita
1990	13.158991456553448
1991	12.785295899818218
1992	11.906407345246322
1993	11.196948953647565
1994	10.84290441892155
1995	10.507948817371075
1996	9.86950217496375
1997	9.881308501399209
1998	9.588513057723812
1999	8.995473369931618
2000	8.48029295557483
2001	7.777670558718517
2002	7.535503816056419
2003	6.6415313225058
2004	6.192549588776004
2005	6.057375460360535
2006	4.2840489605595495
2007	4.042076555955975
2008	4.129649516743141
2009	3.9480113358741327
2010	4.169514695830485
2011	3.8996401828260234
2012	4.031022596706243
2013	4.423040957546288
2014	4.625228519195613
2015	4.8725972284309345
2016	4.607851709364343
2017	4.793699708953946
2018	4.528681650452868
2019	4.401582591493571
2020	3.361753958587089