Year	metric tons per capita
1990	8.160624835222778
1991	6.87268320914799
1992	6.38967967248481
1993	5.609673701801993
1994	5.122178294294018
1995	5.942777498810876
1996	6.913563165399326
1997	7.5372069325074795
1998	7.569454309044503
1999	5.407364939875213
2000	5.851965835526997
2001	6.158754266213879
2002	6.6420401354121275
2003	7.112272279021804
2004	7.704822503399031
2005	6.811809370778746
2006	7.152196788561234
2007	6.9718958504677655
2008	6.77882926529294
2009	6.4029553026053
2010	6.4601677913651026
2011	7.081766506098409
2012	6.360565389146414
2013	6.486829109234726
2014	5.466697220533096
2015	6.39995050302429
2016	6.60709443405954
2017	6.743135952899204
2018	6.615354386415155
2019	6.627579916302328
2020	6.714517172175142