Year	metric tons per capita
1990	0.16293797714013003
1991	0.14246878098871138
1992	0.1636297229796076
1993	0.1620139064590045
1994	0.1710360290628627
1995	0.18260353277396235
1996	0.19520836403924904
1997	0.19731728198536896
1998	0.29061099964797743
1999	0.3034345005898015
2000	0.25168439636069295
2001	0.269588732225873
2002	0.32130240174472646
2003	0.29916293451411974
2004	0.2704592310828723
2005	0.28142035780759805
2006	0.33761806891556045
2007	0.35508631569001936
2008	0.32750437832438895
2009	0.37354770968517914
2010	0.40597122494288207
2011	0.4122385836097242
2012	0.47941524631701193
2013	0.5049736069303057
2014	0.47405767794549925
2015	0.49602473961792515
2016	0.4921550679100773
2017	0.5007897820487428
2018	0.5433933166467131
2019	0.5722648957293394
2020	0.6028874531426752