Year	metric tons per capita
1990	2.155239043143892
1991	2.1490049646021028
1992	2.1073111892914063
1993	2.0812037494223565
1994	2.0290899935784186
1995	2.085936369022414
1996	2.06775603060674
1997	2.063177683809468
1998	2.057001490907427
1999	2.032247711884813
2000	2.0850418433371267
2001	2.118293410384135
2002	2.1638915852889262
2003	2.3089100625060937
2004	2.463313076902906
2005	2.6053099264204684
2006	2.7445225697169113
2007	2.8737802972716002
2008	2.9224507056617184
2009	2.95666389067728
2010	3.1354181784951125
2011	3.3014376955438363
2012	3.351037827585944
2013	3.401065114755363
2014	3.405526023333576
2015	3.329491233570665
2016	3.3088026150219556
2017	3.3583507117356017
2018	3.450042791815106
2019	3.4564302275951135
2020	3.3417444797630327