Year	metric tons per capita
1990	29.055796091994797
1991	30.653565579871966
1992	28.21185399892545
1993	28.61541755349294
1994	30.39024071885906
1995	30.88211609917551
1996	30.52327581348254
1997	29.656726456500973
1998	28.567574876845605
1999	27.660389796753126
2000	25.86885058710061
2001	28.13865910408147
2002	27.285556829143108
2003	27.2248726413375
2004	27.54777393053783
2005	27.20254389577371
2006	24.813970492476557
2007	22.448500023158303
2008	22.32814900084923
2009	19.645539073177787
2010	19.192795938489734
2011	19.431780348108294
2012	20.2756524576141
2013	21.133916075086777
2014	21.12277444725531
2015	21.914501891296513
2016	22.28070271016091
2017	21.165497906111575
2018	19.060949529489005
2019	20.153344832531218
2020	20.252271680142616