Year	metric tons per capita
1990	1.1026364973283784
1991	1.1306877526138293
1992	1.2952685618269797
1993	1.2566403126474213
1994	1.4420501262698513
1995	1.5050917099939478
1996	1.5886172209426639
1997	1.7794680687640212
1998	2.0062602283519952
1999	2.115468887722743
2000	2.1860504489572454
2001	2.1898272473076608
2002	2.37451508515934
2003	2.0992724991401204
2004	1.9110867291811784
2005	2.0394187828868118
2006	2.1938961035603834
2007	2.193825576678494
2008	2.1612320050471765
2009	2.0374249292163475
2010	2.115519466271403
2011	2.1117180312845547
2012	2.161474933111565
2013	2.0958051702211598
2014	2.086214752509576
2015	2.2670460180406526
2016	2.3360992713243447
2017	2.211962081455069
2018	2.356223766389229
2019	2.3686343961458136
2020	2.080181721914415