Year	metric tons per capita
1990	1.09947817052726
1991	1.1694289083274625
1992	1.2202600233668774
1993	1.3387413953674863
1994	1.360655472545168
1995	1.3822355778439621
1996	1.4233736274202025
1997	1.4144584440782944
1998	1.5439224212591809
1999	1.870553669932024
2000	2.04899766023829
2001	2.144635860792602
2002	2.1688149218716926
2003	2.2652612146336235
2004	2.268872394252922
2005	2.4113904778653277
2006	2.677642391061235
2007	2.7388817631067335
2008	2.7865456816499363
2009	2.744284444244923
2010	2.9285028790786947
2011	2.905611927141721
2012	2.9660429881151256
2013	3.032741374201999
2014	3.1314422363321515
2015	3.136404992085544
2016	3.1932815666426904
2017	3.3002157504978706
2018	3.2664152398471207
2019	3.296800515014001
2020	2.938514108058836