Year	metric tons per capita
1990	3.636029826290417
1991	2.5520640658849656
1992	3.662536584872362
1993	4.641523878386498
1994	5.043245349816746
1995	4.776814086954048
1996	4.569494104531508
1997	5.324948490356579
1998	3.981354144761088
1999	3.052567565718168
2000	3.558041546221916
2001	3.8368045702485714
2002	3.4722380126589854
2003	3.0026462546967783
2004	3.162657111101252
2005	2.966264933960038
2006	2.8699656782851855
2007	2.674379896197909
2008	3.016467613315057
2009	3.110217425180857
2010	3.4719569484925175
2011	3.4912467426631877
2012	3.809431761871086
2013	3.920421173672136
2014	3.6478560889954976
2015	3.5269442115198784
2016	3.7025508048321845
2017	3.9488089723365505
2018	4.142680466215167
2019	4.347264139322175
2020	3.842177819743993