Year	metric tons per capita
1990	2.2883835769041556
1991	2.1562836304084705
1992	2.201875347774032
1993	2.319203085269973
1994	2.5211189842227046
1995	2.7032358646123593
1996	3.0718314269873943
1997	3.463042688950158
1998	3.468333321997538
1999	3.586506953884351
2000	3.2845987626596727
2001	3.1193744283842713
2002	3.129989632842035
2003	3.165410522354593
2004	3.4319026523092884
2005	3.460143672044389
2006	3.4985973005113387
2007	3.9146343696095274
2008	4.080770342962701
2009	3.8881282009561082
2010	4.101883997576594
2011	4.452800823684157
2012	4.521602782091864
2013	4.740083124285227
2014	4.328593459145497
2015	4.6032361051327895
2016	4.783525702643774
2017	4.743802418663133
2018	4.629657058677268
2019	4.827620074807695
2020	4.39515106359663