Year	metric tons per capita
1990	2.586497365294205
1991	2.5749623554855194
1992	2.5309277546099227
1993	2.5107658592636044
1994	2.458808171953712
1995	2.5367451023382297
1996	2.5253321267023483
1997	2.5231705752038036
1998	2.5109672690493308
1999	2.4768342163584807
2000	2.5412401954477404
2001	2.589119549346059
2002	2.6553987102284293
2003	2.844823274822492
2004	3.043198525523155
2005	3.227855338311214
2006	3.4135405057091472
2007	3.5871045872023855
2008	3.6579747223902843
2009	3.713894981341081
2010	3.9536421455577146
2011	4.1794352405500375
2012	4.260608066593804
2013	4.333751356631699
2014	4.341354479747399
2015	4.254220592349004
2016	4.229398947249952
2017	4.294282287803799
2018	4.425060277741483
2019	4.441295753435343
2020	4.305188678868066