Year	metric tons per capita
1990	1.1600553272688725
1991	1.220954710399166
1992	1.2420823436262864
1993	1.2655006704315233
1994	1.3462694089596217
1995	1.4357101672112245
1996	1.650039104973008
1997	1.7356867426503328
1998	1.864406779661017
1999	1.9209346301826384
2000	1.8486112145357063
2001	1.9196560924992587
2002	1.9449141188753685
2003	2.052602538164429
2004	1.9796194163409915
2005	2.067952183140748
2006	2.1254550041445923
2007	2.244797493846498
2008	2.324899091377869
2009	2.3170182518167928
2010	2.399179228158788
2011	2.2650933709253556
2012	2.4035475188073714
2013	2.711531061610159
2014	2.148814973044451
2015	2.2911413682971933
2016	2.3123218245169466
2017	2.3775853656519548
2018	2.6289006713833123
2019	2.8209641145986115
2020	2.624067020855066