Year	metric tons per capita
1990	7.050820625642332
1991	6.4897092373332494
1992	5.345445003668233
1993	4.586804458332845
1994	4.05575025131489
1995	3.6203691184424014
1996	3.6664981837212913
1997	3.505598986538839
1998	3.3744547242158673
1999	3.157898699927462
2000	2.926894891343372
2001	3.1479096514160285
2002	3.18253221728416
2003	3.3187715667484716
2004	3.365483610693546
2005	3.4460440620171795
2006	3.6963843060427153
2007	3.877518093917944
2008	3.722876083555854
2009	3.43848652616254
2010	4.060966220194464
2011	3.83418240149458
2012	3.721491073917119
2013	3.7027854362935972
2014	3.6525056400348683
2015	3.699519652576172
2016	3.6464225988077796
2017	3.6641561736709214
2018	4.039697505258995
2019	3.954965508809074
2020	3.645612168492814