Year	metric tons per capita
1990	2.1656808372375935
1991	2.1546805103968145
1992	2.1146341995510003
1993	2.091035030465083
1994	2.041160376687288
1995	2.0995402914670045
1996	2.0906202277469896
1997	2.084671911954421
1998	2.07247494866394
1999	2.042363854027621
2000	2.090143707716622
2001	2.1236617608844357
2002	2.1680841566706635
2003	2.3096824698398355
2004	2.4595261910926
2005	2.5969615788820435
2006	2.7344040893397343
2007	2.860949165896279
2008	2.907775645078922
2009	2.9388635719955523
2010	3.1163101102367436
2011	3.279910541171505
2012	3.3292700896821774
2013	3.3770951153154773
2014	3.3775528335316167
2015	3.3040677095326716
2016	3.283780597370521
2017	3.328666522196629
2018	3.416591754719209
2019	3.418150997322841
2020	3.2982645879209675