Year	metric tons per capita
1990	10.942255091868313
1991	10.996322106850375
1992	10.36901684889623
1993	10.552128542941434
1994	11.777452458398457
1995	10.981755318836523
1996	12.210656380541364
1997	11.794931160241525
1998	11.111986460458507
1999	10.939925358253667
2000	10.644373130992198
2001	11.774866191416821
2002	12.198539475652607
2003	13.755593213446195
2004	12.945805914572052
2005	10.571708943183655
2006	12.727210236926794
2007	12.30972711733652
2008	10.66362605179848
2009	10.148381558572964
2010	11.658082482745867
2011	10.230255636686492
2012	9.126037062259845
2013	9.228085748556898
2014	8.452183204943978
2015	7.813697924147157
2016	8.316247529936021
2017	7.809318955291134
2018	8.049188427212279
2019	7.423039601159517
2020	6.570145127725746