Year	metric tons per capita
1990	7.254484978540773
1991	6.975873913922005
1992	7.194475893031427
1993	7.699030602547045
1994	8.031339136877198
1995	8.435581605049595
1996	8.561858749121575
1997	8.733276216586704
1998	8.62580807234969
1999	8.650383673469387
2000	9.0630147877246
2001	9.000232955427862
2002	9.29689497716895
2003	9.40632614317533
2004	9.275943604053458
2005	8.80397108266836
2006	9.120178062577088
2007	9.27534435453545
2008	9.127079684763572
2009	8.7805519931602
2010	9.250262343249908
2011	8.991063380463055
2012	9.615473105366284
2013	8.31348098517278
2014	7.877332424504302
2015	7.9133542559158
2016	7.633161713082144
2017	7.5638736184912725
2018	6.91499302021885
2019	6.935752153744202
2020	6.3452160041670735