Year	metric tons per capita
1990	6.4990435693582835
1991	6.2228584649198915
1992	5.593595581435697
1993	5.636714492451526
1994	5.586610920731233
1995	5.560218279372619
1996	5.669047693400152
1997	5.5381349335687355
1998	5.586412988953468
1999	5.656686720331955
2000	5.350451000203605
2001	5.524415228902342
2002	5.473180971251179
2003	5.744271809849044
2004	5.575243496037358
2005	5.5438524486557785
2006	5.506450463045246
2007	5.355168868053995
2008	5.281251955034116
2009	4.7730989309214635
2010	4.788038987510328
2011	4.7040297031798
2012	4.377582189037053
2013	4.120313568612895
2014	4.117501825374592
2015	4.407596930538041
2016	4.50869128796621
2017	5.052101733904674
2018	5.033254347268352
2019	4.836876266548605
2020	4.591652907047882