Year	metric tons per capita
1990	0.8143555259595755
1991	0.8756658647082334
1992	0.9090848535766233
1993	0.9653171946675139
1994	1.0217888419649677
1995	1.1288917791436952
1996	1.1755109680584004
1997	1.2762524731035474
1998	1.2638834079173642
1999	1.3245829050292728
2000	1.3109381334086
2001	1.391237665486662
2002	1.3885145140343216
2003	1.4966734754460707
2004	1.510301504707507
2005	1.4953689153072536
2006	1.5723513617776266
2007	1.6178121777937333
2008	1.5808324154730617
2009	1.6228757236469207
2010	1.7029059791049175
2011	1.9255422235503592
2012	1.925450047606593
2013	1.7704020324585301
2014	1.891427826762091
2015	1.8875644814464916
2016	1.8483038518567843
2017	1.9485744308636923
2018	2.126836838371583
2019	2.245285770708331
2020	2.0716589622147183