Year	metric tons per capita
1990	1.466687635653704
1991	1.500077778947951
1992	1.5110991140750882
1993	1.3599993319627082
1994	1.243221421309478
1995	1.1011326828856474
1996	1.042785992932857
1997	1.1288682844453641
1998	1.0532974342241177
1999	0.9817690423047519
2000	0.9436081230297129
2001	0.8933026483623985
2002	0.936961095694518
2003	0.9802726572745446
2004	1.0180247364473232
2005	1.0539182126195483
2006	1.1228417057167375
2007	1.2261676060677458
2008	1.288809285029755
2009	1.3501116321373607
2010	1.4381112892450263
2011	1.5382186993266609
2012	1.6046817614544673
2013	1.6869879215503472
2014	1.7842194004627832
2015	1.8036741828398972
2016	1.8936936513002958
2017	1.8913154288479601
2018	1.8851881703175826
2019	1.8534615062940916
2020	1.5394646956031595