Year	metric tons per capita
1990	1.5141806977388972
1991	1.5357578607857485
1992	1.5674987143861088
1993	1.6368722741919013
1994	1.6295154779250511
1995	1.669255807761007
1996	1.6175030893953313
1997	1.7386327868221199
1998	1.7149138210435928
1999	1.4493210359571287
2000	1.5044063981929425
2001	1.4957700429553535
2002	1.4182263580531493
2003	1.3813734806834101
2004	1.3592137853127528
2005	1.378155010286365
2006	1.3605106596675325
2007	1.3787719381778965
2008	1.3761878181721536
2009	1.4142419411942302
2010	1.4313179538035745
2011	1.5398983762549605
2012	1.533846498318339
2013	1.6809878815941801
2014	1.7158209635912223
2015	1.7193902307755256
2016	1.753795803149774
2017	1.5650751759954686
2018	1.610391517447677
2019	1.5778201407739623
2020	1.5522594228207756